{"id":8,"date":"2023-09-17T11:15:57","date_gmt":"2023-09-17T11:15:57","guid":{"rendered":"https:\/\/mathority.org\/ja\/%e9%9d%9e%e5%90%88%e7%90%86%e7%9a%84%e3%81%be%e3%81%9f%e3%81%af%e6%a0%b9%e6%9c%ac%e7%9a%84%e3%81%aa%e9%96%a2%e6%95%b0\/"},"modified":"2023-09-17T11:15:57","modified_gmt":"2023-09-17T11:15:57","slug":"%e9%9d%9e%e5%90%88%e7%90%86%e7%9a%84%e3%81%be%e3%81%9f%e3%81%af%e6%a0%b9%e6%9c%ac%e7%9a%84%e3%81%aa%e9%96%a2%e6%95%b0","status":"publish","type":"post","link":"https:\/\/mathority.org\/ja\/%e9%9d%9e%e5%90%88%e7%90%86%e7%9a%84%e3%81%be%e3%81%9f%e3%81%af%e6%a0%b9%e6%9c%ac%e7%9a%84%e3%81%aa%e9%96%a2%e6%95%b0\/","title":{"rendered":"\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570"},"content":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u3001\u7121\u7406\u95a2\u6570 (\u6839\u95a2\u6570\u3068\u3082\u547c\u3070\u308c\u307e\u3059) \u3068\u306f\u4f55\u304b\u3001\u304a\u3088\u3073\u3053\u306e\u30bf\u30a4\u30d7\u306e\u95a2\u6570\u306e\u3059\u3079\u3066\u306e\u7279\u5fb4\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u6839\u95a2\u6570\u307e\u305f\u306f\u7121\u7406\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u3092\u767a\u898b\u3057\u3001\u3055\u3089\u306b\u3001\u30b0\u30e9\u30d5\u4e0a\u3067\u305d\u308c\u3089\u3092\u8868\u73fe\u3059\u308b\u65b9\u6cd5\u3092\u4f8b\u3068\u3068\u3082\u306b\u78ba\u8a8d\u3057\u3001\u6f14\u7fd2\u3084\u554f\u984c\u3092\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3057\u3066\u7df4\u7fd2\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfque-es-una-funcion-irracional-o-radical\"><\/span>\u975e\u5408\u7406 (\u307e\u305f\u306f\u30e9\u30b8\u30ab\u30eb) \u95a2\u6570\u3068\u306f\u4f55\u3067\u3059\u304b?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u7121\u7406\u95a2\u6570\u306f\u6839\u95a2\u6570\u3068\u540c\u3058\u3053\u3068\u3092\u610f\u5473\u3059\u308b\u305f\u3081\u3001\u3053\u308c\u3089\u306f\u6b21\u306e\u5b9a\u7fa9\u3092\u5171\u6709\u3057\u307e\u3059\u3002 <\/p>\n<div style=\"background:linear-gradient(to bottom, #FFFFFF 0%, #FFE0B2 100%); padding-top: 23px; padding-bottom: 0.5px; padding-right: 30px; padding-left: 30px; border: 2px dashed #FF9B28; border-radius:20px;\">\n<p style=\"text-align:left\"><strong>\u7121\u7406\u95a2\u6570 \u306f<\/strong><strong>\u6839\u95a2\u6570<\/strong>\u3068\u3082\u547c\u3070\u308c\u3001\u6839\u306e\u8a18\u53f7\u306e\u4e0b\u306b\u72ec\u7acb\u5909\u6570 x \u3092\u6301\u3064\u95a2\u6570\u3067\u3059\u3002<\/p>\n<\/div>\n<p>\u3059\u3067\u306b\u3054\u5b58\u77e5\u306e\u3068\u304a\u308a\u3001\u30eb\u30fc\u30c8\u306e\u7d50\u679c\u306f\u30d7\u30e9\u30b9\u307e\u305f\u306f\u30de\u30a4\u30ca\u30b9\u306b\u306a\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u7121\u7406\u6570 (\u307e\u305f\u306f\u30e9\u30b8\u30ab\u30eb) \u95a2\u6570\u306e\u8868\u73fe\u306b\u306f 2 \u3064\u306e\u53ef\u80fd\u306a\u66f2\u7dda\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exemples-de-fonctions-irrationnelles-ou-radicales.webp\" alt=\"\u975e\u5408\u7406\u7684\u307e\u305f\u306f\u30e9\u30b8\u30ab\u30eb\u95a2\u6570\u306e\u4f8b\" class=\"wp-image-177\" width=\"430\" height=\"366\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p>\u305f\u3060\u3057\u3001\u7b26\u53f7\u304c\u6307\u5b9a\u3055\u308c\u3066\u3044\u306a\u3044\u5834\u5408\u306f\u3001\u6b63\u306e\u95a2\u6570\u304c\u8868\u73fe\u3055\u308c\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3001\u7121\u7406\u95a2\u6570\u3092\u6709\u7406\u95a2\u6570\u3068\u6df7\u540c\u3057\u306a\u3044\u3067\u304f\u3060\u3055\u3044\u3002\u3053\u308c\u3089\u306f\u975e\u5e38\u306b\u3088\u304f\u4f3c\u305f\u540d\u524d\u3067\u3059\u304c\u3001\u307e\u3063\u305f\u304f\u7570\u306a\u308b\u30bf\u30a4\u30d7\u306e 2 \u3064\u306e\u95a2\u6570\u3067\u3059\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"dominio-de-una-funcion-irracional-o-radical\"><\/span>\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570\u306e\u9818\u57df<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u30eb\u30fc\u30c8\u3092\u6301\u3064\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u306f\u3001\u30eb\u30fc\u30c8 \u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30d1\u30ea\u30c6\u30a3\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u6839\u53f7\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5076\u6570\u3067\u3042\u308b\u304b\u5947\u6570\u3067\u3042\u308b\u304b\u306b\u4f9d\u5b58\u3057\u307e\u3059\u3002 <\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"dominio-de-una-funcion-con-raiz-de-indice-par\"><\/span>\u5076\u6570\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30eb\u30fc\u30c8\u3092\u6301\u3064\u95a2\u6570\u306e\u30c9\u30e1\u30a4\u30f3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u3054\u5b58\u77e5\u306e\u3068\u304a\u308a\u3001\u8ca0\u306e\u6570\u306b\u306f\u6839 (\u5076\u6570\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9) \u304c\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001<strong>\u5076\u6570\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6301\u3064\u6839\u95a2\u6570\u306f\u3001\u305d\u306e\u5185\u5bb9\u304c 0 \u4ee5\u4e0a\u3067\u3042\u308b\u9650\u308a\u5b58\u5728\u3057\u307e\u3059\u3002<\/strong><\/p>\n<p>\u4f8b\u3068\u3057\u3066\u3001\u6b21\u306e\u6839\u95a2\u6570\u307e\u305f\u306f\u7121\u7406\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u304c\u3069\u306e\u3088\u3046\u306b\u8a08\u7b97\u3055\u308c\u308b\u304b\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-624a36ddc41727915170ad84e04af5f3_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=\\sqrt{x-4}\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"114\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u3053\u308c\u306f\u30e9\u30b8\u30ab\u30eb\u5076\u6570\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u95a2\u6570\u3067\u3042\u308b\u305f\u3081\u3001\u305d\u306e\u5185\u5bb9\u304c\u6b63\u307e\u305f\u306f\u30bc\u30ed\u3067\u3042\u308b\u5834\u5408\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059<strong>\u3002<\/strong><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f6f54cf39cf142946b7fb5d6066009c8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x-4\\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"73\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p>\u4e0d\u7b49\u5f0f\u3092\u89e3\u304d\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3bdacfb2a15271cdd2fb04176f683713_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\\ge 4\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"43\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u3053\u306e\u95a2\u6570\u306f x \u304c 4 \u4ee5\u4e0a\u306e\u5834\u5408\u306b\u5e38\u306b\u5b58\u5728\u3057\u3001\u6b21\u306e\u9593\u9694\u3067\u793a\u3055\u308c\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-87a6beff3b91d11f1d2dc420d6dace7d_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f= [4,+\\infty)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"137\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"dominio-de-una-funcion-con-raiz-de-indice-impar\"><\/span>\u5947\u6570\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30eb\u30fc\u30c8\u3092\u6301\u3064\u95a2\u6570\u306e\u30c9\u30e1\u30a4\u30f3<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>\u5947\u6570\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6301\u3064\u7121\u7406\u95a2\u6570\u3067\u306f\u3001\u8ca0\u306e\u6570\u306e\u5947\u6570\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u30eb\u30fc\u30c8\u304c\u5b58\u5728\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u554f\u984c\u306f\u767a\u751f\u3057\u307e\u305b\u3093\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c3abab45564c61124c12eb0ffa89b7fd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt[3]{-8}=-2\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"82\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u5947\u6570\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306e\u6839\u95a2\u6570\u306f\u3001 <em>x<\/em>\u306e\u4efb\u610f\u306e\u5024\u306b\u5bfe\u3057\u3066\u5b58\u5728\u3057\u307e\u3059\u3002\u8a00\u3044\u63db\u3048\u308c\u3070\u3001<strong>\u30c9\u30e1\u30a4\u30f3\u306f\u5b9f\u6570\u306e\u307f\u3067\u69cb\u6210\u3055\u308c\u307e\u3059<\/strong>\u3002<\/p>\n<p>\u305f\u3068\u3048\u3070\u3001\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5947\u6570\u3067\u3042\u308b\u6b21\u306e\u6839\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u8a08\u7b97\u3057\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-65987eff0c48ff229a59c03e8164c3df_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=\\sqrt[3]{3x-4}\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"124\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u3053\u308c\u306f\u5947\u6570\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u3092\u6301\u3064\u7121\u7406\u95a2\u6570\u3067\u3042\u308b\u305f\u3081\u3001\u305d\u306e\u5b9a\u7fa9\u57df\u306f\u5b9f\u6570\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4f565027fd5d2a4381e3a23d183c9f76_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f= \\mathbb{R}\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"90\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"como-representar-una-funcion-irracional-o-radical\"><\/span>\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570\u3092\u8868\u73fe\u3059\u308b\u65b9\u6cd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u4f8b\u3092\u4f7f\u7528\u3057\u3066\u3001\u30b0\u30e9\u30d5\u4e0a\u3067\u6839\u3092\u6301\u3064\u95a2\u6570\u3092\u8868\u3059\u65b9\u6cd5\u3092\u898b\u3066\u307f\u307e\u3057\u3087\u3046\u3002<\/p>\n<ul>\n<li>\u6b21\u306e\u6839\u95a2\u6570\u307e\u305f\u306f\u7121\u7406\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u306b\u30d7\u30ed\u30c3\u30c8\u3057\u307e\u3059\u3002<\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2643f318c5e502f2d6827ec22d20f6c8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)=\\sqrt{x+2}\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"114\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u6700\u521d\u306b\u884c\u3046\u3053\u3068\u306f\u3001\u95a2\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u3092\u898b\u3064\u3051\u308b\u3053\u3068\u3067\u3059\u3002\u3053\u308c\u306f\u5e73\u65b9\u6839\u306a\u306e\u3067\u3001\u8ca0\u306e\u6570\u306e\u5e73\u65b9\u6839\u306f\u5b58\u5728\u3057\u306a\u3044\u305f\u3081\u3001\u305d\u3053\u306b\u542b\u307e\u308c\u308b\u3082\u306e\u306f\u3059\u3079\u3066\u6b63\u3067\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30e9\u30b8\u30ab\u30eb\u95a2\u6570\u306f\u3001\u305d\u306e\u5185\u5bb9\u304c 0 \u4ee5\u4e0a\u3067\u3042\u308b\u9650\u308a\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1ebfe7e55e1e5753b26b6db52894aae5_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x+2\\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"73\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-db8c8201f5940b1d818d122820973504_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\\ge -2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"56\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p>\u3057\u305f\u304c\u3063\u3066\u3001\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u306f -2 \u4ee5\u4e0a\u306e\u3059\u3079\u3066\u306e\u6570\u5024\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002\u3064\u307e\u308a\u3001\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-fd7f6030f8b7a92cdcc6b7f9dbb34d16_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f = [-2,+\\infty)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"151\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p>\u95a2\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u304c\u308f\u304b\u3063\u305f\u3089\u3001\u5024\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002\u660e\u3089\u304b\u306b\u3001\u8a08\u7b97\u3059\u308b\u30dd\u30a4\u30f3\u30c8\u304c\u591a\u3051\u308c\u3070\u591a\u3044\u307b\u3069\u3001\u95a2\u6570\u306e\u8868\u73fe\u306f\u3088\u308a\u6b63\u78ba\u306b\u306a\u308a\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u30c9\u30e1\u30a4\u30f3\u9593\u9694\u5185\u306e 3 \u3064\u307e\u305f\u306f 4 \u3064\u306e\u30dd\u30a4\u30f3\u30c8\u3092\u8a08\u7b97\u3059\u308c\u3070\u5341\u5206\u3067\u3059\u3002 <\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-307\">\n<div class=\"wp-block-column is-layout-flow\">\n<ul>\n<li>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a3c3800751119915b939b96fe53b0a62_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= -2 \\ \\longrightarrow \\ f(-2)=\\sqrt{-2+2}= 0\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"278\" style=\"vertical-align: -5px;\"><\/p>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-77f388ade5bdbca831436e5786a04c02_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= -1 \\ \\longrightarrow \\ f(-1)=\\sqrt{-1+2}= 1\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"277\" style=\"vertical-align: -5px;\"><\/p>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-30da4ca4b03a3f86d0bf78f951418371_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 2 \\ \\longrightarrow \\ f(2)=\\sqrt{2+2}= 2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"236\" style=\"vertical-align: -5px;\"><\/p>\n<\/li>\n<\/ul>\n<ul>\n<li>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-a515902ef92cb39fa2cdcddba8195174_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 7 \\ \\longrightarrow \\ f(7)=\\sqrt{7+2}= 3\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"237\" style=\"vertical-align: -5px;\"><\/p>\n<\/li>\n<\/ul>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c72f72e58a4aa07f85403ae5717df70c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c|c} x &amp; f(x) \\\\ \\hline -2 &amp; 0 \\\\ -1 &amp; 1 \\\\ 2 &amp; 2 \\\\ 7 &amp; 3 \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"112\" width=\"90\" style=\"vertical-align: -51px;\"><\/p>\n<\/p>\n<\/div>\n<\/div>\n<p>\u5f97\u3089\u308c\u305f\u70b9\u3092\u30b0\u30e9\u30d5\u4e0a\u306b\u8868\u73fe\u3057\u307e\u3059<strong>\u3002<\/strong> <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/comment-representer-une-fonction-radicale-ou-irrationnelle.webp\" alt=\"\u6839\u95a2\u6570\u307e\u305f\u306f\u7121\u7406\u95a2\u6570\u3092\u8868\u3059\u65b9\u6cd5\" class=\"wp-image-178\" width=\"460\" height=\"249\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p>\u6700\u5f8c\u306b\u3001\u70b9\u3092\u7d50\u5408\u3057\u3066\u66f2\u7dda\u3092\u5ef6\u9577\u3057\u3001\u95a2\u6570\u304c\u6210\u9577\u3057\u7d9a\u3051\u308b\u3053\u3068\u3092\u793a\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exemple-de-representation-graphique-d-une-fonction-radicale-ou-irrationnelle.webp\" alt=\"\u6839\u95a2\u6570\u307e\u305f\u306f\u7121\u7406\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u30a3\u30c3\u30af\u8868\u73fe\u306e\u4f8b\" class=\"wp-image-179\" width=\"460\" height=\"251\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ejercicios-resueltos-de-funciones-irracionales-o-radicales\"><\/span>\u975e\u5408\u7406\u95a2\u6570\u307e\u305f\u306f\u6025\u9032\u95a2\u6570\u306b\u95a2\u3059\u308b\u6f14\u7fd2\u554f\u984c\u3092\u89e3\u6c7a\u3057\u307e\u3057\u305f\u3002<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 1<\/h3>\n<p>\u6b21\u306e\u6839\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u6c42\u3081\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5227797e1a51357e63fe97f3be067f96_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt{3x+6}\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"64\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E6F9EF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E6F9EF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u8ca0\u306e\u6570\u306e\u5e73\u65b9\u6839\u306f\u5b58\u5728\u3057\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u95a2\u6570\u306f\u30eb\u30fc\u30c8\u5f15\u6570\u304c\u6b63\u307e\u305f\u306f\u30bc\u30ed\u306e\u5834\u5408\u306b\u5b58\u5728\u3057\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5c62658062f5e3d6cb16c0ee363bbd93_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"3x+6 \\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"82\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7daaaaa8dbd463d1fd48238c117d907a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"3x \\ge -6\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"66\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f260f939524d3b3ebc56682e50ea20d9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x \\ge \\cfrac{-6}{3}\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"67\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-618af1663a2fcefe0c8e7e008636a5dd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x \\ge -2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"56\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-962c0025662fc501e1896d80160964a0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mathbf{Dom } \\ \\bm{f = [-2,+\\infty)}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"156\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 2<\/h3>\n<p>\u6b21\u306e\u7121\u7406\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u6c42\u3081\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-78ebc335a724fd652684605114abf8b7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt{-x+2}\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"69\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E6F9EF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E6F9EF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u8ca0\u306e\u6570\u306e\u5e73\u65b9\u6839\u306b\u306f\u5b9f\u969b\u306e\u89e3\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u30eb\u30fc\u30c8\u306e\u5185\u5bb9\u304c\u6b63\u307e\u305f\u306f\u30bc\u30ed\u3067\u3042\u308b\u9650\u308a\u3001\u95a2\u6570\u306f\u5b58\u5728\u3057\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-33a4820b3d1a0ba845425a092bbc9382_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-x+2\\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"86\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d0d57b00f0f063ba60525c7bb003c93c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-x\\ge -2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"69\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-007ba44659e7cdccd6ee0d929da8891c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\\le\\cfrac{-2}{-1}=2\" title=\"Rendered by QuickLaTeX.com\" height=\"38\" width=\"98\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u4e0d\u7b49\u5f0f\u3067\u4e57\u7b97\u307e\u305f\u306f\u9664\u7b97\u3059\u308b\u8ca0\u306e\u6570\u306e\u8fba\u3092\u5909\u66f4\u3059\u308b\u5834\u5408\u306f\u3001\u4e0d\u7b49\u53f7\u306e\u7b26\u53f7\u3082\u56de\u8ee2\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-76d696873565b2fde467626265440add_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\\le2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"42\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6fcd2f8dbe5bf6b1804f522f82984da6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\mathbf{Dom } \\ \\bm{f = (-\\infty,2]}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"141\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 3<\/h3>\n<p>\u6b21\u306e\u7121\u7406\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u306b\u30d7\u30ed\u30c3\u30c8\u3057\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-42e79b66433070221b9b45119683a97f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)= \\sqrt{x-1}\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"114\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E6F9EF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E6F9EF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u307e\u305a\u6700\u521d\u306b\u3001\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2e968b1016def57c4944997419ec6300_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x-1\\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"73\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-1f077fdba5fb39bebecba8de762e4880_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\\ge 1\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"42\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-35d3f547259a5d3839f9d66a31e485ff_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f = [1,+\\infty)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"137\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6b21\u306b\u3001\u30c9\u30e1\u30a4\u30f3\u7bc4\u56f2\u5185\u306e\u95a2\u6570\u306e\u5024\u3092\u6307\u5b9a\u3057\u3066\u3001\u5024\u306e\u914d\u5217\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-310\">\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ce58b7b43358163474680c4ed1f679cd_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 1 \\ \\longrightarrow \\ f(1)= \\sqrt{1-1}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"237\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f1aeb989c9085de4b81624b2d9fe0720_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 2 \\ \\longrightarrow \\ f(2)= \\sqrt{2-1}=1\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"236\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-299894d9a0673df30ca5d1b163cf81be_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 5 \\ \\longrightarrow \\ f(5)= \\sqrt{5-1}=2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"236\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3a624bf18490395896c06b5db90612d8_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 10 \\ \\longrightarrow \\ f(10)= \\sqrt{10-1}=3\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"263\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-81644903e1958606867b0908817c091f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c|c} x &amp; f(x) \\\\ \\hline 1 &amp; 0 \\\\ 2 &amp; 1 \\\\ 5 &amp; 2 \\\\ 10 &amp; 3 \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"112\" width=\"85\" style=\"vertical-align: -51px;\"><\/p>\n<\/p>\n<\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6700\u5f8c\u306b\u3001\u70b9\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u3001\u30b0\u30e9\u30d5\u4e0a\u306b\u95a2\u6570\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exercice-resolu-pas-a-pas-de-fonction-irrationnel-ou-radical.webp\" alt=\"\u975e\u5408\u7406\u7684\u307e\u305f\u306f\u6025\u9032\u7684\u306a\u95a2\u6570\u3092\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3059\u308b\u6f14\u7fd2\" class=\"wp-image-180\" width=\"415\" height=\"204\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 4<\/h3>\n<p>\u6b21\u306e\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u306b\u3057\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7d19c800dc2ea20793710ebeb44c57b0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)= -2\\sqrt{x}+3\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"136\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E6F9EF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E6F9EF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u307e\u305a\u6700\u521d\u306b\u3001\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-46bb299f47d94e1927057d14ab78801f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"43\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-4352746a25b5189ba00c16a9f10e0316_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f = [0,+\\infty)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"137\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6b21\u306b\u3001\u30c9\u30e1\u30a4\u30f3\u7bc4\u56f2\u5185\u306e\u95a2\u6570\u306e\u5024\u3092\u6307\u5b9a\u3057\u3066\u3001\u5024\u306e\u914d\u5217\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-313\">\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-020d59f29830e2ad11c40318ae4ce5a1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 0 \\ \\longrightarrow \\ f(0)= -2\\sqrt{0}+3=3\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"259\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-cb8b754408ffc7676b63c1a9524aca0a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 1 \\ \\longrightarrow \\ f(1)= -2\\sqrt{1}+3=1\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"258\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-499ba530ff14f35ff3376bc0c5b8a7d2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 4 \\ \\longrightarrow \\ f(4)= -2\\sqrt{4}+3=-1\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"272\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-57008deb14e81aa3ee6ee1546369db77_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 9 \\ \\longrightarrow \\ f(9)= -2\\sqrt{9}+3=-3\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"273\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-01738dd5c857391ebbe824cd2d68b276_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c|c} x &amp; f(x) \\\\ \\hline 0 &amp; 3 \\\\ 1 &amp; 1 \\\\ 4 &amp; -1 \\\\ 9 &amp; -3 \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"112\" width=\"78\" style=\"vertical-align: -51px;\"><\/p>\n<\/p>\n<\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6700\u5f8c\u306b\u3001\u70b9\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u3001\u30b0\u30e9\u30d5\u4e0a\u306b\u95a2\u6570\u3092\u63cf\u753b\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exemple-du-graphe-d-une-fonction-irrationnelle-ou-radicale.webp\" alt=\"\u975e\u5408\u7406\u7684\u307e\u305f\u306f\u6025\u9032\u7684\u306a\u95a2\u6570\u3092\u6bb5\u968e\u7684\u306b\u89e3\u6c7a\u3059\u308b\u6f14\u7fd2\" class=\"wp-image-181\" width=\"408\" height=\"318\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 5<\/h3>\n<p>\u6b21\u306e\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u306b\u3057\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9ba5f342391543ebd4936bdb4172b560_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)= \\sqrt{-x+5}\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"128\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E6F9EF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E6F9EF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u95a2\u6570\u3092\u30d7\u30ed\u30c3\u30c8\u3059\u308b\u524d\u306b\u3001\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2ea058d741d4f54988266eff83ac4e5f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-x+5\\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"86\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-edc9aa58baf5d190aaa50260d2682248_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"-x\\ge -5\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"69\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b853f76c54b3edc8fb67cee4bc3f9e19_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\\le\\cfrac{-5}{-1}=5\" title=\"Rendered by QuickLaTeX.com\" height=\"39\" width=\"98\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u4e0d\u7b49\u5f0f\u3067\u4e57\u7b97\u307e\u305f\u306f\u9664\u7b97\u3059\u308b\u8ca0\u306e\u6570\u306e\u8fba\u3092\u5909\u66f4\u3059\u308b\u5834\u5408\u306f\u3001\u4e0d\u7b49\u53f7\u306e\u7b26\u53f7\u3082\u5909\u66f4\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3053\u3068\u306b\u6ce8\u610f\u3057\u3066\u304f\u3060\u3055\u3044\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-db032fd3a93ada954d57503dc023099a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x\\le5\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"42\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-d1520ce14f7045b93c7340d4b46a1b74_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f = (-\\infty,5]\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"136\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3053\u3053\u3067\u3001\u95a2\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u306b\u5c5e\u3059\u308b\u70b9\u3067\u95a2\u6570\u3092\u8a55\u4fa1\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u5024\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u69cb\u7bc9\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-316\">\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-cf3230433fe57141824a374833dcdf9f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 5 \\ \\longrightarrow \\ f(5)=\\sqrt{-5+5}=0\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"250\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-16a363047ab5b63a636ceba2bc2edfa2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 4 \\ \\longrightarrow \\ f(4)=\\sqrt{-4+5}=1\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"249\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-52fb9488589ffa8e992e1e02c27c3066_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 1 \\ \\longrightarrow \\ f(1)=\\sqrt{-1+5}=2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"249\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-440c1e8970256a70d4e1c006720ea9fb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= -4 \\ \\longrightarrow \\ f(-4)=\\sqrt{-(-4)+5}=3\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"308\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8f28bfe1c88172869773c3a4baec94ca_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c|c} x &amp; f(x) \\\\ \\hline 5 &amp; 0 \\\\ 4 &amp; 1 \\\\ 1 &amp; 2 \\\\ -4 &amp; 3 \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"112\" width=\"90\" style=\"vertical-align: -51px;\"><\/p>\n<\/p>\n<\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6700\u5f8c\u306b\u3001\u70b9\u3092\u8868\u3057\u3001\u30b0\u30e9\u30d5\u4e0a\u306b\u95a2\u6570\u3092\u30da\u30a4\u30f3\u30c8\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/exercices-resolus-de-fonctions-radicales-ou-irrationnelles.webp\" alt=\"\u6025\u9032\u7684\u307e\u305f\u306f\u975e\u5408\u7406\u7684\u306a\u6a5f\u80fd\u306e\u6c7a\u5b9a\u3055\u308c\u305f\u6f14\u7fd2\" class=\"wp-image-182\" width=\"363\" height=\"198\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 6<\/h3>\n<p>\u6b21\u306e\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u306b\u30d7\u30ed\u30c3\u30c8\u3057\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-5532cd3ca43ebdac3ce43c046e15bfc1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)= \\sqrt{x^2-5x+4}\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"163\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E6F9EF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E6F9EF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u307e\u305a\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u8a08\u7b97\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f79b0c3812612b665aaef39de9d97149_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2-5x+4\\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"122\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3053\u306e\u5834\u5408\u30012 \u6b21\u4e0d\u7b49\u5f0f\u304c\u5f97\u3089\u308c\u305f\u305f\u3081\u3001\u305d\u308c\u3092\u89e3\u304f\u305f\u3081\u306b 2 \u6b21\u65b9\u7a0b\u5f0f\u306e\u516c\u5f0f\u3092\u9069\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-bd0f7a0d21b888b4e5016eb027b534a7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x=\\cfrac{-b\\pm \\sqrt{b^2-4ac}}{2a}\" title=\"Rendered by QuickLaTeX.com\" height=\"41\" width=\"165\" style=\"vertical-align: -12px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3e5bc09c561e2790b1af96a618a015a0_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle x=\\cfrac{-(-5)\\pm \\sqrt{(-5)^2-4\\cdot 1\\cdot 4}}{2\\cdot 1} = \\cfrac{5\\pm 3}{2} =\\begin{cases} 4 \\\\[2ex] 1 \\end{cases}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"365\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u5f97\u3089\u308c\u305f\u30eb\u30fc\u30c8\u3092\u4f7f\u7528\u3057\u3066\u3001\u884c\u3092 3 \u3064\u306e\u90e8\u5206\u306b\u5206\u5272\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/domaine-dune-fonction-irrationnelle.webp\" alt=\"\" class=\"wp-image-183\" width=\"366\" height=\"43\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p class=\"has-text-align-left\">\u305d\u3057\u3066\u3001\u4e0d\u7b49\u5f0f\u306e\u5404\u30bb\u30af\u30b7\u30e7\u30f3\u306b\u6570\u5024\u3092\u4ee3\u5165\u3057\u3066\u3001\u3069\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u304c\u4e0d\u7b49\u5f0f\u3092\u6e80\u305f\u3057\u3066\u3044\u308b\u306e\u304b\u3001\u3057\u305f\u304c\u3063\u3066\u30c9\u30e1\u30a4\u30f3\u306b\u5c5e\u3057\u3066\u3044\u308b\u306e\u304b\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002<\/p>\n<p class=\"ql-center-displayed-equation\" style=\"line-height: 137px;\"><span class=\"ql-right-eqno\"> &nbsp; <\/span><span class=\"ql-left-eqno\"> &nbsp; <\/span><\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-c9c9c5a39dc152cdcb902dbf0b2e5b59_l3.png\" height=\"137\" width=\"680\" class=\"ql-img-displayed-equation quicklatex-auto-format\" alt=\"x^2-5x+4\\ge 0 \\ \\xrightarrow{x\\ = \\ 0} <span class=&quot;ql-right-eqno&quot;>   <\/span><span class=&quot;ql-left-eqno&quot;>   <\/span><img src=&quot;https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7c214e08b91825263231bc6eddbbdee1_l3.png&quot; height=&quot;54&quot; width=&quot;404&quot; class=&quot;ql-img-displayed-equation quicklatex-auto-format&quot; alt=&quot;\\[0^2-5\\cdot 0+4\\ge 0 \\ \\longrightarrow \\ 4\\ge 0 $ \u2705$x^2-5x+4\\ge 0 \\ \\xrightarrow{x\\ = \\ 2}\\]&quot; title=&quot;Rendered by QuickLaTeX.com&quot;\/> 2^2-5\\cdot 2+4\\ge 0 \\ \\longrightarrow \\ -10\\ \\cancel{\\ge } \\ 0&#8243; title=&#8221;Rendered by QuickLaTeX.com&#8221;><\/p>\n<\/p>\n<p>\u274c<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2ba275d878055060d9f1f232b43b8d7e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x^2-5x+4\\ge 0 \\ \\xrightarrow{x\\ = \\ 5}\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"179\" style=\"vertical-align: -3px;\"><\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-83bcc8fb2e8f22a2156cd258de5ed608_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"5^2-5\\cdot 5+4\\ge 0 \\ \\longrightarrow \\ 4\\ge 0\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"224\" style=\"vertical-align: -3px;\"><\/p>\n<p> \u2705<\/p>\n<p class=\"has-text-align-left\">\u3057\u305f\u304c\u3063\u3066\u3001\u4e0d\u7b49\u5f0f\u3092\u5c0a\u91cd\u3059\u308b\u30bb\u30af\u30b7\u30e7\u30f3\u306f\u8fba\u306e\u30bb\u30af\u30b7\u30e7\u30f3\u3067\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/domaine-dune-fonction-radicale.webp\" alt=\"\" class=\"wp-image-184\" width=\"366\" height=\"46\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<p class=\"has-text-align-left\">\u3057\u305f\u304c\u3063\u3066\u3001\u95a2\u6570\u306e\u30c9\u30e1\u30a4\u30f3\u306f\u6b21\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b680e7160227605450a9e97fbb9fdbbe_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f = (-\\infty,1]\\cup [4,+\\infty)\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"217\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u8a08\u7b97\u3057\u305f\u3089\u3001\u5b9a\u7fa9\u57df\u306e\u7bc4\u56f2\u5185\u306e\u95a2\u6570\u306e\u5024\u3092\u4e0e\u3048\u308b\u5024\u306e\u30c6\u30fc\u30d6\u30eb\u3092\u4f5c\u6210\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-319\">\n<div class=\"wp-block-column is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ed6d482c8f20a711c2ebd8918c7b5dfa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 1 \\ \\longrightarrow \\ f(1)=\\sqrt{1^2-5\\cdot 1+4} =0\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"296\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-9d4966cf27f0fd7cbcb9897457ef1a23_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 0 \\ \\longrightarrow \\ f(0)=\\sqrt{0^2-5\\cdot 0+4} =2\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"295\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8fc83308a6420951633f086998077ebf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= -1 \\ \\longrightarrow \\ f(-1)=\\sqrt{(-1)^2-5\\cdot (-1)+4} =3,16\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"408\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-8887531a085876374823e623a2338970_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 4 \\ \\longrightarrow \\ f(4)=\\sqrt{4^2-5\\cdot 4+4} =0\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"296\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6a02aa9fba40d0611a9956aa2bbb90a2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 5 \\ \\longrightarrow \\ f(5)=\\sqrt{5^2-5\\cdot 5+4} =2\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"295\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f4f3e0f153312d18d1e053903d0ebf29_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 6 \\ \\longrightarrow \\ f(6)=\\sqrt{6^2-5\\cdot 6+4} =3,16\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"322\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<\/div>\n<div class=\"wp-block-column is-layout-flow\" style=\"flex-basis:33.33%\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f930838c6e44ca715b85a73fafe248c6_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c|c} x &amp; f(x) \\\\ \\hline 1 &amp; 0 \\\\ 0 &amp; 2 \\\\ -1 &amp; 3,16 \\\\ 4 &amp; 0 \\\\ 5 &amp; 2 \\\\ 6 &amp; 3,16 \\\\ \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"156\" width=\"90\" style=\"vertical-align: -73px;\"><\/p>\n<\/p>\n<\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6700\u5f8c\u306b\u3001\u53d6\u5f97\u3057\u305f\u70b9\u3092\u30b0\u30e9\u30d5\u4e0a\u306b\u8868\u3057\u3001\u95a2\u6570\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/graphique-de-fonction-irrationnelle-ou-radicale-dindice-pair.webp\" alt=\"\u5076\u6570\u306e\u6307\u6570\u3092\u6301\u3064\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570\u306e\u30b0\u30e9\u30d5\" class=\"wp-image-185\" width=\"482\" height=\"269\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 7<\/h3>\n<p>\u30eb\u30fc\u30c8\u306b\u3088\u3063\u3066\u5f62\u6210\u3055\u308c\u308b\u6b21\u306e\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u4e0a\u306b\u8868\u3057\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-33e1d80dd68d184dbbf07e090b2a3075_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(x)= \\sqrt[3]{x}\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"85\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E6F9EF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E6F9EF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u3053\u308c\u306f\u30eb\u30fc\u30c8\u306e\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u304c\u5947\u6570\u3067\u3042\u308b\u7121\u7406\u95a2\u6570\u3067\u3042\u308b\u305f\u3081\u3001\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u306f\u5b9f\u6570\u3067\u69cb\u6210\u3055\u308c\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0cd1539b66edeb38040ed80168e1fd9b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\text{Dom } f = \\mathbb{R}\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"90\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u3057\u305f\u304c\u3063\u3066\u3001\u4efb\u610f\u306e\u70b9\u3092\u53d6\u5f97\u3057\u3066\u5024\u306e\u8868\u3092\u4f5c\u6210\u3067\u304d\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u7acb\u65b9\u6839\u3067\u3042\u308b\u305f\u3081\u3001\u591a\u304f\u306e\u70b9\u3092\u63a2\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-columns is-layout-flex wp-container-322\">\n<div class=\"wp-block-column is-layout-flow\" style=\"flex-basis:66.66%\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ff9cf5879c32e2787a6747b41c5ecded_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 0 \\ \\longrightarrow \\ f(0)= \\sqrt[3]{0} = 0\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"207\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-16c416c17e3dcab315ee160cd292c972_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 0,5 \\ \\longrightarrow \\ f(0,5)= \\sqrt[3]{0,5} = 0,79\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"283\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b97f2e3514a83904a1fd4a4fa37ef39a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= -0,5 \\ \\longrightarrow \\ f(-0,5)= \\sqrt[3]{-0,5} = -0,79\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"338\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-567dfcce97fc79b8ec915adabcf51c53_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 1 \\ \\longrightarrow \\ f(1)= \\sqrt[3]{1} = 1\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"206\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-37cc895c2772cf32732f3ad7d5910aee_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= -1 \\ \\longrightarrow \\ f(-1)= \\sqrt[3]{-1} = -1\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"261\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-2cd85b49489d08da13490ab97bdf708a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= 8 \\ \\longrightarrow \\ f(8)= \\sqrt[3]{8} = 2\" title=\"Rendered by QuickLaTeX.com\" height=\"21\" width=\"206\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-438025444e3289620b8a5bf11d39660b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"x= -8 \\ \\longrightarrow \\ f(-8)= \\sqrt[3]{-8} = -2\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"261\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<\/div>\n<div class=\"wp-block-column is-vertically-aligned-center is-layout-flow\" style=\"flex-basis:33.33%\">\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-21eb0a68ee7f4b9bc5c5fb42f5a36328_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c|c} x &amp; f(x) \\\\ \\hline 0 &amp; 0 \\\\ 0,5 &amp; 0,79 \\\\ -0,5 &amp; -0,79 \\\\ 1 &amp; 1 \\\\ -1 &amp; -1 \\\\ 8 &amp; 2 \\\\ -8 &amp; -2 \\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"178\" width=\"121\" style=\"vertical-align: -84px;\"><\/p>\n<\/p>\n<\/div>\n<\/div>\n<p class=\"has-text-align-left\">\u6700\u5f8c\u306b\u3001\u898b\u3064\u304b\u3063\u305f\u70b9\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u3001\u30b0\u30e9\u30d5\u4e0a\u306b\u95a2\u6570\u3092\u30d7\u30ed\u30c3\u30c8\u3057\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/uploads\/2023\/07\/representation-graphique-dune-fonction-irrationnelle-ou-radicale-dun-indice-impair.webp\" alt=\"\u5947\u6570\u306e\u6307\u6570\u3092\u4f7f\u7528\u3057\u3066\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570\u3092\u30b0\u30e9\u30d5\u5316\u3059\u308b\" class=\"wp-image-186\" width=\"561\" height=\"270\" srcset=\"\" sizes=\"auto, \" data-src=\"\"><\/figure>\n<\/div>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n<h3 class=\"wp-block-heading\">\u6f14\u7fd2 8<\/h3>\n<p>\u7121\u7406\u6570 (\u307e\u305f\u306f\u30e9\u30b8\u30ab\u30eb) \u95a2\u6570\u306b\u95a2\u9023\u3059\u308b\u6b21\u306e\u554f\u984c\u3092\u89e3\u304d\u307e\u3059\u3002<\/p>\n<p>\u643a\u5e2f\u96fb\u8a71\u306e\u30d0\u30c3\u30c6\u30ea\u30fc\u306e\u6d88\u8cbb\u91cf\u306f\u6b21\u306e\u95a2\u6570\u3067\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-88e0a642418314faa4ff395e40da9dec_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(t)=\\sqrt{x-K \\vphantom{(-K)}}\" title=\"Rendered by QuickLaTeX.com\" height=\"22\" width=\"121\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p>\u3053\u3053\u3067\u3001\u6d88\u8cbb\u91cf\u306f\u30df\u30ea\u30a2\u30f3\u30da\u30a2 (mA) \u3067\u8868\u3055\u308c\u3001<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-b4e3cbf5d4c5c6d9b702dd139f14c147_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"t\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"6\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u7d4c\u904e\u6642\u9593 (\u5206) \u3067\u3059\u3002<\/p>\n<p>\u5b9a\u6570\u306e\u5024\u3092\u6c7a\u5b9a\u3059\u308b<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-ea9c87a513e4a72624155d392fae86e2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"K\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"16\" style=\"vertical-align: 0px;\"><\/p>\n<p>4 \u5206\u5f8c\u306e\u6d88\u8cbb\u91cf\u306f 35 mA \u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<div class=\"wp-block-otfm-box-spoiler-start otfm-sp__wrapper otfm-sp__box js-otfm-sp-box__closed otfm-sp__E6F9EF\" role=\"button\" tabindex=\"0\" aria-expanded=\"false\" data-otfm-spc=\"#E6F9EF\" style=\"text-align:center\">\n<div class=\"otfm-sp__title\"><strong>\u89e3\u6c7a\u7b56\u3092\u898b\u308b<\/strong><\/div>\n<\/div>\n<p class=\"has-text-align-left\">4 \u5206\u5f8c\u306e\u6d88\u8cbb\u91cf\u304c 35 mA \u3067\u3042\u308b\u3068\u3044\u3046\u3053\u3068\u306f\u3001t \u304c 4 \u306e\u5834\u5408\u3001f(t) \u306f 35 \u3067\u3042\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002\u3064\u307e\u308a\u3001f(4)=35 \u306b\u306a\u308a\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-60a9c6e6fc25b6b4a22742383a429400_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"f(4)=\\sqrt{4-K} = 35\" title=\"Rendered by QuickLaTeX.com\" height=\"20\" width=\"159\" style=\"vertical-align: -5px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-59baad76cb4a8eeb877d6eb6055c6777_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt{4-K} = 35\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"101\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6b21\u306b\u3001\u5f97\u3089\u308c\u305f\u65b9\u7a0b\u5f0f\u3092\u89e3\u304f\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3088\u304f\u898b\u308b\u3068\u6839\u304c\u3042\u308b\u306e\u3067\u7121\u7406\u6570\u3067\u3059\u3002\u3053\u306e\u30bf\u30a4\u30d7\u306e\u65b9\u7a0b\u5f0f\u3067\u306f\u3001\u6700\u521d\u306b\u7247\u5074\u306e\u6839\u3092\u5206\u96e2\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u306e\u5834\u5408\u3001\u6839\u306f\u3059\u3067\u306b\u5206\u96e2\u3055\u308c\u3066\u3044\u307e\u3059\u3002\u5206\u96e2\u3057\u305f\u3089\u3001\u65b9\u7a0b\u5f0f\u306e\u4e21\u8fba\u3092\u4e8c\u4e57\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0b834c1688aa5e4ccc87f5a2dbb56a43_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\left( \\sqrt{4-K} \\right)^2= 35^2\" title=\"Rendered by QuickLaTeX.com\" height=\"27\" width=\"132\" style=\"vertical-align: -7px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6b21\u306b\u3001\u30eb\u30fc\u30c8\u3092\u5358\u7d14\u5316\u3057\u307e\u3059\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-0396a3e2a3ee507199b1b81ea70fa36a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"4-K= 35^2\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"95\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u305d\u3057\u3066\u3001\u6b21\u306e\u65b9\u7a0b\u5f0f\u3092\u89e3\u304d\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-7b73ab2e0cee4a13fdb21093ea88bf55_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"4-K= 1125\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"105\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-e34f99c25a171ff3872dad7a5c02e577_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"4-1225=K\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"106\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-f14e731da093f1ad6b0efaf13be99481_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\bm{-1221=K}\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"88\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u6700\u5f8c\u306b\u3001\u7121\u7406\u6570\u65b9\u7a0b\u5f0f\u3067\u306f\u3001\u89e3\u3092\u691c\u8a3c\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3057\u305f\u304c\u3063\u3066\u3001\u6700\u521d\u306e\u65b9\u7a0b\u5f0f\u306b K=-1221 \u3092\u4ee3\u5165\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002 <\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-3e9b1d8c0d5969edc8e00ca5fdb7e694_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt{4-K} = 35 \\ \\xrightarrow{K \\ = \\ -1221} \\ \\sqrt{4-(-1221)} = 35\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"360\" style=\"vertical-align: -6px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-494a9f97e9765f9f23e73d2ac480e5b1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt{4+1221} = 35\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"120\" style=\"vertical-align: -3px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-434d3da36cdf2a90de20d45530759b9f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\sqrt{1225} = 35\" title=\"Rendered by QuickLaTeX.com\" height=\"18\" width=\"90\" style=\"vertical-align: -2px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/mathority.org\/wp-content\/ql-cache\/quicklatex.com-6dc9c0d5a5bb963b5a3e50a78967accc_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"35 = 35\" title=\"Rendered by QuickLaTeX.com\" height=\"13\" width=\"58\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p class=\"has-text-align-left\">\u7b49\u5f0f\u304c\u6210\u308a\u7acb\u3064\u306e\u3067\u3001\uff2b\uff1d\uff0d\uff11\uff12\uff12\uff11\u304c\u89e3\u3068\u306a\u308b\u3002<\/p>\n<div class=\"wp-block-otfm-box-spoiler-end otfm-sp_end\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u3053\u306e\u30da\u30fc\u30b8\u3067\u306f\u3001\u7121\u7406\u95a2\u6570 (\u6839\u95a2\u6570\u3068\u3082\u547c\u3070\u308c\u307e\u3059) \u3068\u306f\u4f55\u304b\u3001\u304a\u3088\u3073\u3053\u306e\u30bf\u30a4\u30d7\u306e\u95a2\u6570\u306e\u3059\u3079\u3066\u306e\u7279\u5fb4\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u6839\u95a2\u6570\u307e\u305f\u306f\u7121\u7406\u95a2\u6570\u306e\u5b9a\u7fa9\u57df\u3092\u8a08\u7b97\u3059\u308b\u65b9\u6cd5\u3092\u767a\u898b\u3057\u3001\u3055\u3089\u306b\u3001\u30b0\u30e9\u30d5\u4e0a\u3067\u305d\u308c\u3089\u3092\u8868\u73fe\u3059\u308b\u65b9\u6cd5\u3092\u4f8b\u3068 &hellip;<\/p>\n<p class=\"read-more\"> <a class=\"\" href=\"https:\/\/mathority.org\/ja\/%e9%9d%9e%e5%90%88%e7%90%86%e7%9a%84%e3%81%be%e3%81%9f%e3%81%af%e6%a0%b9%e6%9c%ac%e7%9a%84%e3%81%aa%e9%96%a2%e6%95%b0\/\"> <span class=\"screen-reader-text\">\u7121\u7406\u95a2\u6570\u307e\u305f\u306f\u6839\u95a2\u6570<\/span> \u3082\u3063\u3068\u8aad\u3080 &raquo;<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[17],"tags":[],"class_list":["post-8","post","type-post","status-publish","format-standard","hentry","category-17"],"yoast_head":"<!-- This site is optimized 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