{"id":252919,"date":"2022-12-20T12:05:41","date_gmt":"2022-12-20T11:05:41","guid":{"rendered":"https:\/\/sherpas.com\/blog\/?p=252919"},"modified":"2025-01-09T17:12:58","modified_gmt":"2025-01-09T16:12:58","slug":"racine-carree","status":"publish","type":"post","link":"https:\/\/sherpas.com\/blog\/racine-carree\/","title":{"rendered":"Tout savoir sur la racine carr\u00e9e \ud83e\udd13"},"content":{"rendered":"\n<p>Lorsque tu entends les mots <strong>&#8216;racine carr\u00e9e&#8217;<\/strong>, tu ne penses pas au super album de Stromae, mais plut\u00f4t au symbole math\u00e9matique. Ce qui est certain, c&#8217;est que les math\u00e9matiques te donnent davantage la migraine que les chansons du Belge ! \ud83d\ude30 Pour te changer la vie, on t\u2019a concoct\u00e9 un cours sur les racines carr\u00e9es. Gr\u00e2ce \u00e0 \u00e7a, les th\u00e9or\u00e8mes de Pythagore et de Thal\u00e8s ne te poseront plus de probl\u00e8mes ! \ud83d\ude06<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Racine carr\u00e9e, kezaco ?<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">D\u00e9finition racine carr\u00e9e&nbsp;<\/h3>\n\n\n\n<p><strong>La racine carr\u00e9e d\u2019un chiffre correspond au r\u00e9sultat d\u2019un nombre qui est multipli\u00e9 par lui-m\u00eame. <\/strong>En gros, la racine carr\u00e9e, c&#8217;est le chiffre qui est \u00e0 l\u2019origine d\u2019un carr\u00e9. \ud83d\ude1f<\/p>\n\n\n\n<p>Voici un exemple pour que tu puisses mieux comprendre cette d\u00e9finition.&nbsp;<\/p>\n\n\n\n<p>\ud83d\udc49 <span class=\"underline\" style=\"text-decoration: underline\">Exemple<\/span> : la racine carr\u00e9e de 9, c&#8217;est 3 ! 3 x 3 = 9 ! Tu saisis ? <\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\u26a0\ufe0f Important<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p><!-- wp:list --><\/p>\n<ul>\n<li style=\"list-style-type: none\">\n<ul><!-- wp:list-item --><\/p>\n<li>Uniquement possible de calculer la racine carr\u00e9e de nombres entiers positifs.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><!-- \/wp:list-item --> <!-- wp:list-item --><\/p>\n<ul>\n<li style=\"list-style-type: none\">\n<ul>\n<li>Une racine carr\u00e9e <strong>donne toujours un nombre positif<\/strong>. Il est impossible qu\u2019une racine carr\u00e9e donne un nombre n\u00e9gatif.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p><!-- \/wp:list-item --><\/p>\n<p><!-- \/wp:list --><\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h3 class=\"wp-block-heading\">Aux origines de la racine carr\u00e9e \ud83c\udf0d<\/h3>\n\n\n\n<p>La <a href=\"https:\/\/fr.wikipedia.org\/wiki\/Racine_carr%C3%A9e\" target=\"_blank\" rel=\"noreferrer noopener\">racine carr\u00e9e<\/a> est apparue <strong>pour la premi\u00e8re fois au XX\u1d49 si\u00e8cle avant J\u00e9sus-Christ<\/strong>. Oui, tu as bien compris, AVANT J\u00e9sus-Christ. Elle ne date pas d\u2019hier ! \ud83d\ude31 Cependant,<strong> son symbole tel qu\u2019on le conna\u00eet est apparu pour la premi\u00e8re fois en 1525 gr\u00e2ce \u00e0 Christoff Rudolff <\/strong>(un brillant math\u00e9maticien allemand du XVI\u1d49 si\u00e8cle)<strong>.<\/strong>&nbsp;<\/p>\n\n\n\n<p>\ud83d\udca1 On a choisi d\u2019utiliser le terme de racine carr\u00e9e car \u00e0 l\u2019origine, apr\u00e8s avoir calcul\u00e9 l\u2019aire d\u2019un carr\u00e9, on revenait en arri\u00e8re (\u00e0 la racine) pour trouver la longueur du c\u00f4t\u00e9.&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/D35fOVm9gSQ91icJeR\/giphy-downsized-large.gif\" alt=\"Les racines carr\u00e9es ont tout cr\u00e9es ! \"\/><figcaption class=\"wp-element-caption\"><em>Les racines carr\u00e9es \u00e0 l&#8217;origine du monde <\/em><\/figcaption><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u00c0 quoi sert la racine carr\u00e9e ? \ud83e\udd14<\/h3>\n\n\n\n<p><strong>La racine carr\u00e9e repr\u00e9sente un chiffre math\u00e9matique<\/strong>. Par cons\u00e9quent, elle est utilis\u00e9e pour r\u00e9soudre<strong> des \u00e9quations<\/strong> du second degr\u00e9 ou faire des calculs. Ce n\u2019est pas tout, elle est \u00e9galement pr\u00e9sente et utile dans de <strong>nombreux th\u00e9or\u00e8mes<\/strong>. En particulier ton pr\u00e9f\u00e9r\u00e9 : <a href=\"https:\/\/sherpas.com\/blog\/comprendre-le-theoreme-de-pythagore\/\">le th\u00e9or\u00e8me de Pythagore<\/a>. \ud83d\ude2d<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">La racine carr\u00e9e, une fonction \ud83d\ude80<\/h3>\n\n\n\n<p>La racine carr\u00e9e n\u2019est pas uniquement utilis\u00e9e dans les th\u00e9or\u00e8mes de Thal\u00e8s ou de Pythagore. Elle est aussi utilis\u00e9e en tant que fonction. \u00c7a ne te dit rien ? Bouge pas. &nbsp;<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><\/div>\n                        <div class=\"you-know__text\">\n            <p><strong>D\u00e9finition de fonction racine carr\u00e9e :<\/strong> la fonction racine carr\u00e9e est la fonction \u201cf\u201d qui a tout nombre de son ensemble de d\u00e9finition associe la racine carr\u00e9e de ce nombre.<\/p>\n<p><!-- \/wp:paragraph --> <!-- wp:paragraph --><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Formule de la fonction racine carr\u00e9e : <\/strong>f(x) <strong>= <\/strong>a\u221abx<\/p>\n<p>\ud83d\udc49 La courbe de la fonction racine carr\u00e9e est croissante<\/p>\n\n        <\/div>\n              <\/section>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/eWBAxjcXjST6Wxz5bc\/giphy-downsized-large.gif\" alt=\"C'est cool les maths, les fonctions, les racines carr\u00e9es, on en a plein la t\u00eate !\" style=\"width:-323px;height:-214px\"\/><\/figure><\/div>\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9wcm9mZXNzZXVycz9zdWJqZWN0PU1hdGhzJnNpZ251cD10cnVl\" data-banner=\"2\" data-name=\"CPM1 Maths\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            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xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">24\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Nicolas2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Nicolas<\/p>                          <p class=\"push__teachers-school\">CentraleSup\u00e9lec<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fabien2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fabien<\/p>                          <p class=\"push__teachers-school\">T\u00e9l\u00e9com Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Cle\u0301mence2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Cl\u00e9mence<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Bastien2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Bastien<\/p>                          <p class=\"push__teachers-school\">Polytechnique<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Pierre2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Pierre<\/p>                          <p class=\"push__teachers-school\">ESSEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Simon2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Simon<\/p>                          <p class=\"push__teachers-school\">4e ann\u00e9e de m\u00e9decine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Besoin d&#8217;un <span style=\"color: #4cc583;\">prof particulier<\/span> de maths ? <span role=\"image\" aria-label=\"\u2728\">\u2728<\/span><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos Sherpas sont l\u00e0 pour t&#8217;aider \u00e0 progresser et prendre confiance en toi !<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        JE PRENDS UN COURS OFFERT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\">Les racines carr\u00e9es les plus courantes&nbsp;<\/h2>\n\n\n\n<p>Certaines racines carr\u00e9es sont <strong>\u00e0 conna\u00eetre et \u00e0 retenir<\/strong> pour \u00e9viter de les calculer \u00e0 la machine en plein DST. Comme on pense \u00e0 tout, les voici pour toi !\ud83d\udc47<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Le tableau des racines carr\u00e9es parfaites \u2728<\/h3>\n\n\n\n<table id=\"tablepress-1257\" class=\"tablepress tablepress-id-1257\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Racine carr\u00e9e de <\/th><th class=\"column-2\">Formule <\/th><th class=\"column-3\">R\u00e9sultat <\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 0<\/td><td class=\"column-2\">\u221a0<\/td><td class=\"column-3\">0<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 1<\/td><td class=\"column-2\">\u221a1<\/td><td class=\"column-3\">1<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 4<\/td><td class=\"column-2\">\u221a4<\/td><td class=\"column-3\">2<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 9<\/td><td class=\"column-2\">\u221a9<\/td><td class=\"column-3\">3<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 16<\/td><td class=\"column-2\">\u221a16<\/td><td class=\"column-3\">4<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 25<\/td><td class=\"column-2\">\u221a25<\/td><td class=\"column-3\">5<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 36<\/td><td class=\"column-2\">\u221a36<\/td><td class=\"column-3\">6<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 49<\/td><td class=\"column-2\">\u221a49<\/td><td class=\"column-3\">7<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 64<\/td><td class=\"column-2\">\u221a64<\/td><td class=\"column-3\">8<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 81<\/td><td class=\"column-2\">\u221a81<\/td><td class=\"column-3\">9<\/td>\n<\/tr>\n<tr class=\"row-12\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 100<\/td><td class=\"column-2\">\u221a100<\/td><td class=\"column-3\">10<\/td>\n<\/tr>\n<tr class=\"row-13\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 121<\/td><td class=\"column-2\">\u221a121<\/td><td class=\"column-3\">11<\/td>\n<\/tr>\n<tr class=\"row-14\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 144<\/td><td class=\"column-2\">\u221a144<\/td><td class=\"column-3\">12<\/td>\n<\/tr>\n<tr class=\"row-15\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 169<\/td><td class=\"column-2\">\u221a169<\/td><td class=\"column-3\">13<\/td>\n<\/tr>\n<tr class=\"row-16\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 400<\/td><td class=\"column-2\">\u221a400<\/td><td class=\"column-3\">20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-1257 from cache -->\n\n\n\n<h3 class=\"wp-block-heading\">Le tableau des racines carr\u00e9es courantes<\/h3>\n\n\n\n<table id=\"tablepress-1256\" class=\"tablepress tablepress-id-1256\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Racine carr\u00e9e de <\/th><th class=\"column-2\">Formule <\/th><th class=\"column-3\">R\u00e9sultat <\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 2 <\/td><td class=\"column-2\">\u221a2<\/td><td class=\"column-3\">1,4<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 3<\/td><td class=\"column-2\">\u221a3<\/td><td class=\"column-3\">1,7<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 5<\/td><td class=\"column-2\">\u221a5<\/td><td class=\"column-3\">2,2<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 10 <\/td><td class=\"column-2\">\u221a10<\/td><td class=\"column-3\">3,1<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">Racine carr\u00e9e de 20 <\/td><td class=\"column-2\">\u221a20<\/td><td class=\"column-3\">4,4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-1256 from cache -->\n\n\n\n<h2 class=\"wp-block-heading\">Les formules des racines carr\u00e9es \ud83e\uddd0<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Le tableau des formules des racines carr\u00e9es<\/h3>\n\n\n\n<table id=\"tablepress-1258\" class=\"tablepress tablepress-id-1258\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">\u221aa\u00b2 = a <\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">\u221aa x \u221ab = \u221aaxb<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">\u221aa \/ \u221ab = \u221aa\/b<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">(\u221aa)\u00b2 = a <\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-1258 from cache -->\n\n\n\n<p>Lors d\u2019un calcul, tu peux \u00eatre amen\u00e9 \u00e0 utiliser ces formules. On te conseille donc de les <a href=\"https:\/\/sherpas.com\/blog\/comment-apprendre-par-coeur-rapidement\/\">apprendre par c\u0153ur<\/a>. \ud83d\udc96<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\u26a0\ufe0f Important<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Lorsqu\u2019une racine est associ\u00e9e \u00e0 un carr\u00e9, les deux s\u2019annulent. Il ne reste plus que la valeur du chiffre ou du nombre.<\/p>\n<p>\ud83d\udc49 Exemple : (\u221a9)\u00b2 = 9<\/p>\n\n        <\/div>\n              <\/section>\n\n\n\n<h2 class=\"wp-block-heading\">\ud83d\udd8d\ufe0f Exercice&nbsp;<\/h2>\n\n\n\n<p>Dans cet exercice, tu devras utiliser les formules juste au-dessus pour r\u00e9\u00e9crire les \u00e9quations.&nbsp;&nbsp;<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/adymrxvmro.cloudimg.io\/v7\/sherpas.com\/blog\/content\/uploads\/2022\/12\/racine-carree-856x1024.jpg\" alt=\"\" class=\"wp-image-253190\" style=\"width:485px;height:579px\"\/><\/figure><\/div>\n\n\n<h3 class=\"wp-block-heading\">\u2705 Correction<strong>&nbsp;<\/strong><\/h3>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" src=\"https:\/\/adymrxvmro.cloudimg.io\/v7\/sherpas.com\/blog\/content\/uploads\/2022\/12\/racine-carree-correction-1024x995.jpg\" alt=\"racine carr\u00e9e\" class=\"wp-image-253191\" style=\"width:490px;height:476px\"\/><\/figure><\/div>\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9wcm9mZXNzZXVycz9zdWJqZWN0PU1hdGhzJnNpZ251cD10cnVl\" data-banner=\"2\" data-name=\"CPM2 Maths\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Fanny2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Fanny<\/p>                          <p class=\"push__teachers-school\">Ponts ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Victor2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Victor<\/p>                          <p class=\"push__teachers-school\">ESCP<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Louise2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Louise<\/p>                          <p class=\"push__teachers-school\">Mines ParisTech<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">24\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Emma2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Emma<\/p>                          <p class=\"push__teachers-school\">Dauphine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">15\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Olivier2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Olivier<\/p>                          <p class=\"push__teachers-school\">La Sorbonne<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">13\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jeanne2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jeanne<\/p>                          <p class=\"push__teachers-school\">Aix-Marseille Universit\u00e9<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">17\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Bastien2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Bastien<\/p>                          <p class=\"push__teachers-school\">Polytechnique<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">26\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Cle\u0301mence2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Cl\u00e9mence<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Ton premier <span style=\"color: #4cc483;\">cours particulier<\/span> de maths est <span style=\"color: #4cc483;\">offert<\/span> ! <span role=\"image\" aria-label=\"\ud83c\udf81\">\ud83c\udf81<\/span><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Tous nos profs sont pass\u00e9s par les meilleures \u00e9coles de France !<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: ; border-color: ; background-color: \"\n\n                                    >\n                                        J\u2019EN PROFITE !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\">Une m\u00e9thode pour calculer la racine carr\u00e9e sans calculatrice \ud83d\udd90\ufe0f<\/h2>\n\n\n\n<p>Il est clair que dans le si\u00e8cle o\u00f9 les ordinateurs et les t\u00e9l\u00e9phones portables sont devenus rois, tu utilises la calculatrice pour faire tous tes calculs. N\u00e9anmoins, il vaut mieux \u00eatre pr\u00e9par\u00e9 \u00e0 toutes les \u00e9ventualit\u00e9s ! C\u2019est pourquoi <strong>on a d\u00e9cid\u00e9 de te pr\u00e9senter une technique qui te permettra de la calculer \u00e0 la main<\/strong>. \ud83d\udd90\ufe0f Oui, tu ne r\u00eaves pas. Allez, on te l\u2019explique.&nbsp;<\/p>\n\n\n\n<p><strong>La m\u00e9thode de l\u2019encadrement successif :&nbsp;<\/strong><\/p>\n\n\n\n<p>Dans cet exemple, on souhaite trouver la racine carr\u00e9e de <strong>125 685<\/strong>.&nbsp;<\/p>\n\n\n\n<p><strong>1\ufe0f\u20e3 1\u02b3\u1d49 \u00e9tape :<\/strong> Pour commencer, il va falloir trouver deux nombres qui, au carr\u00e9, encadrent 125 685.&nbsp;<\/p>\n\n\n\n<p>\ud83d\udc49 <span style=\"text-decoration: underline\" class=\"underline\">Exemple<\/span> :&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>300 au carr\u00e9 est \u00e9gale \u00e0 90 000.<\/li>\n\n\n\n<li>400 au carr\u00e9 est \u00e9gale \u00e0 160 000.&nbsp;<\/li>\n\n\n\n<li>Donc : 90 000 &lt; <strong>125 685<\/strong> &lt; 160 000.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>La racine carr\u00e9e de 125 685 se situe forc\u00e9ment entre 300 et 400.&nbsp;<\/p>\n\n\n\n<p><strong>2\ufe0f\u20e3 2\u1d49 \u00e9tape : <\/strong>Maintenant que l\u2019on sait dans quel intervalle se situe notre racine, il faut affiner le r\u00e9sultat.<strong> Pour \u00e7a, tu vas devoir r\u00e9aliser deux soustractions<\/strong>.&nbsp;<\/p>\n\n\n\n<p>La premi\u00e8re sera entre le terme dont on cherche la racine carr\u00e9e (ici 125 685) et le plus petit terme de l\u2019encadrement (ici 90 000).<br>La seconde sera entre le plus grand terme de l\u2019encadrement (ici 160 000) et le terme qu\u2019on recherche (ici 125 685).&nbsp;<\/p>\n\n\n\n<p><strong>Ces deux calculs te permettent de voir o\u00f9 se situe ton nombre et donc de te rapprocher de sa racine carr\u00e9e<\/strong>.&nbsp;<\/p>\n\n\n\n<p>\ud83d\udc49 <span style=\"text-decoration: underline\" class=\"underline\">Exemple<\/span> :&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>125 685 &#8211; 90 000 = 35 685&nbsp;<\/li>\n\n\n\n<li>160 000 &#8211; 125 685 = 34 315<\/li>\n<\/ul>\n\n\n\n<p>Comme tu peux le constater, le r\u00e9sultat est presque le m\u00eame dans les deux calculs. Cela signifie que la racine carr\u00e9e de 125 685 se situe au milieu de l\u2019intervalle 300-400.&nbsp;<\/p>\n\n\n\n<p><strong>3\ufe0f\u20e3 3\u1d49 \u00e9tape :<\/strong> Gr\u00e2ce aux calculs pr\u00e9c\u00e9dents, on sait que la racine carr\u00e9e se situe au milieu de l\u2019intervalle. Tu vas r\u00e9p\u00e9ter le m\u00eame proc\u00e9d\u00e9 que lors de la premi\u00e8re \u00e9tape, en utilisant un encadrement plus pr\u00e9cis.&nbsp;<\/p>\n\n\n\n<p>\ud83d\udc49 <span style=\"text-decoration: underline\" class=\"underline\">Exemple<\/span> :&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>350 au carr\u00e9 est \u00e9gale \u00e0 122 500.&nbsp;<\/li>\n\n\n\n<li>360 au carr\u00e9 est \u00e9gale \u00e0 129 600.&nbsp;<\/li>\n\n\n\n<li>122 500 &lt; <strong>125 685<\/strong> &lt; 129 000.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p><strong>4\ufe0f\u20e3 4\u1d49 \u00e9tape :<\/strong> Tu t\u2019en doutes peut-\u00eatre mais \u00e0 partir de maintenant, tu vas devoir r\u00e9p\u00e9ter le proc\u00e9d\u00e9 jusqu\u2019\u00e0 trouver la valeur la plus proche ou exacte.<\/p>\n\n\n\n<p>\ud83d\udc49 <span style=\"text-decoration: underline\" class=\"underline\">Exemple<\/span> :&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>354 au carr\u00e9 est \u00e9gale \u00e0 125 316.&nbsp;<\/li>\n\n\n\n<li>355 au carr\u00e9 est \u00e9gale \u00e0 126 025&nbsp;<\/li>\n\n\n\n<li>125 316 &lt;<strong> 125 685 <\/strong>&lt; 126 025.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p><em>On est tout proche du r\u00e9sultat ! <\/em><\/p>\n\n\n\n<p>Essayons de calculer le carr\u00e9 de 354,5.&nbsp;<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>354,5 au carr\u00e9 = 125 670.&nbsp;<\/li>\n<\/ul>\n\n\n\n<p>Au vu de la proximit\u00e9 du r\u00e9sultat, on peut garder 354,5 comme racine carr\u00e9e.&nbsp;<\/p>\n\n\n\n<p>Le r\u00e9sultat exact \u00e9tait : <strong>354,520<\/strong>.&nbsp;<\/p>\n\n\n<section class=\"you-know\">\n                <div class=\"you-know__title\"><p>\ud83d\udca1 Verdict<\/p>\n<\/div>\n                        <div class=\"you-know__text\">\n            <p>Savoir calculer \u00e0 la main sa racine carr\u00e9e, c&#8217;est bien&#8230; Mais c\u2019est quand m\u00eame plus pratique et plus rapide \u00e0 la calculatrice !<\/p>\n<p>\ud83d\udc49 Alors pense \u00e0 ne pas l\u2019oublier avant tes examens. Tu pourrais en avoir besoin. \ud83d\ude09<\/p>\n\n        <\/div>\n              <\/section>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" src=\"https:\/\/media.giphy.com\/media\/xUPGcIVA1l5Hye3ekE\/giphy.gif\" alt=\"La calculatrice toujours utile pour les racines carr\u00e9es. \"\/><figcaption class=\"wp-element-caption\"><em>Toi sur ta calculatrice maintenant que tu as d\u00e9couvert la technique rapide. <\/em><\/figcaption><\/figure><\/div>\n\n<section class=\"push \">\n        <div >\n            \n                                                <div class=\"push__container  qcd\" data-target=\"_self\" data-qcd=\"aHR0cHM6Ly9zaGVycGFzLmNvbS9wcm9mZXNzZXVycz9zaWdudXA9dHJ1ZQ==\" data-banner=\"2\" data-name=\"Cours part&amp;#8217; global #1 = CPG1\" style=\"background-color: #F3FBF7\" >\n                                                                        <div class=\"push__teachers\">\n    <div class=\"d-flex justify-content-center d-md-none\">\n        <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\" alt=\"Logo Sherpas\">\n    <\/div>\n    <div class=\"swiper\">\n        <div class=\"swiper-wrapper\">\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Martin2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Martin<\/p>                          <p class=\"push__teachers-school\">HEC Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">23\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Victor2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Victor<\/p>                          <p class=\"push__teachers-school\">ESCP<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Hugo2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Hugo<\/p>                          <p class=\"push__teachers-school\">Insa Lyon<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">16\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Emma2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Emma<\/p>                          <p class=\"push__teachers-school\">Dauphine<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">15\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Thibault2x.png);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Thibault<\/p>                          <p class=\"push__teachers-school\">ENS Paris Ulm<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">20\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/David2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">David<\/p>                          <p class=\"push__teachers-school\">EDHEC<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">25\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Jade2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">Jade<\/p>                          <p class=\"push__teachers-school\">Sciences Po Paris<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">21\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                                            <div class=\"swiper-slide\">\n                    <div class=\"push__teachers-card\">\n                        <div\n                            class=\"push__teachers-profil\"\n                            \n                            style=\"background-image: url(https:\/\/sherpas.com\/content\/uploads\/2022\/01\/Noemie2x.jpg);\"\n                        >\n                    <\/div>\n                         <p class=\"push__teachers-name\">No\u00e9mie<\/p>                          <p class=\"push__teachers-school\">M2 en droit \u00e0 Assas<\/p>                                                     <div class=\"push__teachers-note\">\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                                    <svg  class=\"active\" >\n                                        <use\n                                            xlink:href=\"\/content\/themes\/sherpas-theme\/dist\/images\/sprite.svg#star\"\/>\n                                    <\/svg>\n                                                            <\/div>\n                                                 <p class=\"push__teachers-price\">19\u20ac\/h<\/p>                     <\/div>\n                <\/div>\n                    <\/div>\n    <\/div>\n<\/div>\n                                                    <div class=\"push__content\">\n                                                            <div  class=\"d-none d-md-block\" >\n                                    <img decoding=\"async\" class=\"push__logo\" src=\"\/content\/themes\/sherpas-theme\/dist\/images\/logo.svg\"\n                                        alt=\"Logo Sherpas\">\n                                <\/div>\n                                                                                        <div class=\"push__title\"><p>Ton premier cours particulier est offert ! <span role=\"img\" aria-label=\"\ud83c\udf81\">\ud83c\udf81<\/span><!-- notionvc: 91b6b7d7-50f2-46f4-ae1f-ecbabe834aad --><\/p>\n<\/div>\n                                                                                        <div class=\"push__text\"><p>Nos profs sont pass\u00e9s par les meilleures \u00e9coles et universit\u00e9s.<!-- notionvc: 21bb66b6-b36d-4ce8-8950-173722d75a1e --><\/p>\n<p>&nbsp;<\/p>\n<\/div>\n                                                        <div class=\"push__promo-button   \">\n                                                                                                    <div\n                                        class=\"btn btn-primary\"\n                                        style=\"color: #ffffff; border-color: ; background-color: \"\n\n                                    >\n                                        J&#8217;EN PROFITE MAINTENANT !\n                                    <\/div>\n                                                            <\/div>\n                                                    <\/div>\n                                    <\/div>\n                                    <\/div>\n    <\/section>\n\n\n\n<h2 class=\"wp-block-heading\">Comment travailler les racines carr\u00e9es ? \ud83e\udd14<\/h2>\n\n\n\n<p>Maintenant que tu as mieux compris comment fonctionnait les racines carr\u00e9es, il faut que tu t\u2019entra\u00eenes. Parce que sinon, tu risques d\u2019oublier tout ce que tu as retenu. Voici donc trois conseils qui te permettront d\u2019ancrer la racine carr\u00e9e au plus profond de ta m\u00e9moire.&nbsp;<\/p>\n\n\n\n<p><strong>\ud83d\udc49 Faire une fiche de cours :<\/strong> cette petite astuce vieille comme le monde est pourtant toujours aussi efficace. Tu n\u2019auras qu\u2019\u00e0 y renseigner toutes les formules des racines carr\u00e9es qu\u2019on t\u2019a pr\u00e9sent\u00e9es, ainsi que les racines parfaites les plus importantes. \ud83d\ude01<\/p>\n\n\n\n<p><strong>\ud83d\udc49 Faire des exercices :<\/strong> pour progresser, c\u2019est ce qu\u2019il y a de mieux ! Si Stephen Curry arrive \u00e0 mettre autant de tirs \u00e0 3 points par match, c\u2019est parce qu\u2019il fait au moins 1000 shoots par jour. C&#8217;est ce que tu vas faire avec les racines carr\u00e9es. Tu vas faire plein d\u2019exercices pour les ma\u00eetriser (peut-\u00eatre pas 1000 par jours hein \ud83d\ude09) ! Juste quelques-uns pendant plusieurs jours apr\u00e8s avoir vu le cours.&nbsp;<\/p>\n\n\n\n<p>\ud83d\udc49 <strong>Faire appel \u00e0 un Sherpa :<\/strong> si malgr\u00e9 les exercices, tu as encore un peu de mal avec les racines carr\u00e9es, pas de panique. Il y a encore une solution pour toi : tu peux <strong>faire appel \u00e0<\/strong> <a href=\"https:\/\/sherpas.com\/cours\/maths\" data-type=\"URL\" data-id=\"https:\/\/sherpas.com\/cours\/maths\">l\u2019un de nos super profs de math\u00e9matiques<\/a>, <strong>un excellent compl\u00e9ment \u00e0 ton cours de maths<\/strong> !  L\u2019un de nos professeurs saura r\u00e9pondre \u00e0 ton probl\u00e8me et trouver la solution que tu esp\u00e8res tant ! \ud83e\udd29<\/p>\n\n\n\n<p>Ce petit guide sur les racines carr\u00e9es est maintenant termin\u00e9. On esp\u00e8re que tu ma\u00eetriseras le sujet aussi bien que les chansons de l\u2019album de Stromae. N\u2019h\u00e9site pas \u00e0 nous laisser un commentaire ! \ud83d\ude09<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-center kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;center&quot;,&quot;id&quot;:&quot;252919&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;22&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;4.1&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Tu as aim\u00e9 cet article ?&quot;,&quot;legend&quot;:&quot;4.1\\\/5 - (22 votes)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;Tout savoir sur la racine carr\u00e9e \ud83e\udd13&quot;,&quot;width&quot;:&quot;116.4&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n    \n<div class=\"kksr-stars-active\" style=\"width: 116.4px;\">\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            4.1\/5 - (22 votes)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>Lorsque tu entends les mots &#8216;racine carr\u00e9e&#8217;, tu ne penses pas au super album de Stromae, mais plut\u00f4t (&#8230;)<\/p>\n","protected":false},"author":326,"featured_media":253043,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"category":[803,810],"tag":[77,770,79],"class_list":["post-252919","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-apprendre-matiere","category-maths","tag-college","tag-fiche-revision","tag-lycee"],"acf":[],"_links":{"self":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/252919","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/users\/326"}],"replies":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/comments?post=252919"}],"version-history":[{"count":0,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/posts\/252919\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media\/253043"}],"wp:attachment":[{"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/media?parent=252919"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/category?post=252919"},{"taxonomy":"tag","embeddable":true,"href":"https:\/\/sherpas.com\/blog\/wp-json\/wp\/v2\/tag?post=252919"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}