{"id":11324,"date":"2022-11-28T17:59:12","date_gmt":"2022-11-28T08:59:12","guid":{"rendered":"https:\/\/hatsudy.com\/jp\/?p=11324"},"modified":"2022-12-01T05:07:17","modified_gmt":"2022-11-30T20:07:17","slug":"trigonometric-functions4","status":"publish","type":"post","link":"https:\/\/hatsudy.com\/jp\/trigonometric-functions4.html","title":{"rendered":"\u5f27\u5ea6\u6cd5\u3068\u4e09\u89d2\u95a2\u6570\uff1a\u5f27\u306e\u9577\u3055\u3001\u9762\u7a4d\u3001\u30b0\u30e9\u30d5\u306e\u5e73\u884c\u79fb\u52d5\u3068\u62e1\u5927\u30fb\u7e2e\u5c0f"},"content":{"rendered":"\n<p>\u6570\u5b66\u3067\u5fc5\u305a\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u5185\u5bb9\u306b\u5f27\u5ea6\u6cd5\uff08\u30e9\u30b8\u30a2\u30f3\uff09\u3068\u4e09\u89d2\u95a2\u6570\u304c\u3042\u308a\u307e\u3059\u3002\u7269\u7406\u3067\u306f\u4e09\u89d2\u95a2\u6570\u3092\u5229\u7528\u3057\u3066\u8a08\u7b97\u3059\u308b\u5834\u9762\u304c\u3072\u3093\u3071\u3093\u306b\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u6570\u5b66\u3060\u3051\u3067\u306a\u304f\u3001\u7269\u7406\u3067\u3082\u4e09\u89d2\u95a2\u6570\u306f\u91cd\u8981\u306a\u5b66\u7fd2\u5185\u5bb9\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u89d2\u5ea6\u3092\u5229\u7528\u3059\u308b\u3068\u304d\u3001\u7269\u7406\u3067\u5ea6\u6570\u6cd5\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306f\u307b\u3068\u3093\u3069\u3042\u308a\u307e\u305b\u3093\u3002\u5ea6\u6570\u6cd5\u306e\u4ee3\u308f\u308a\u3068\u3057\u3066\u3001\u5f27\u5ea6\u6cd5\u3092\u7528\u3044\u3066\u8a08\u7b97\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u6570\u5b66\u3067\u5f27\u5ea6\u6cd5\u3092\u7406\u89e3\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u7269\u7406\u306e\u554f\u984c\u3082\u89e3\u3051\u307e\u305b\u3093\u3002<\/p>\n<p>\u6570\u5b66\u3067\u4e09\u89d2\u95a2\u6570\u304c\u91cd\u8981\u306a\u7406\u7531\u306f\u3001\u307b\u304b\u306e\u5b66\u7fd2\u5206\u91ce\u3067\u3082\u3072\u3093\u3071\u3093\u306b\u5229\u7528\u3055\u308c\u308b\u304b\u3089\u3067\u3059\u3002\u305d\u3053\u3067\u5f27\u5ea6\u6cd5\u306b\u6163\u308c\u3001\u4e09\u89d2\u95a2\u6570\u3092\u7528\u3044\u3066\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u3069\u306e\u3088\u3046\u306b\u5f27\u5ea6\u6cd5\u3092\u7528\u3044\u3066\u89d2\u5ea6\u3092\u8a08\u7b97\u3059\u308c\u3070\u3044\u3044\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u307e\u305f\u3001\u4e09\u89d2\u95a2\u6570\u306e\u6027\u8cea\u3084\u30b0\u30e9\u30d5\u306f\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u5f27\u5ea6\u6cd5\u3068\u4e09\u89d2\u95a2\u6570\u306b\u3064\u3044\u3066\u3001\u8003\u3048\u65b9\u3084\u8a08\u7b97\u65b9\u6cd5\u3092\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u5ea6\u6570\u6cd5\u3068\u5f27\u5ea6\u6cd5\uff08\u30e9\u30b8\u30a2\u30f3\uff09\u306e\u5909\u63db<\/h2>\n<p>\u79c1\u305f\u3061\u304c\u5c0f\u5b66\u6821\u3067\u89d2\u5ea6\u3092\u5b66\u3076\u3068\u304d\u300130\u00b0\u308490\u00b0\u306a\u3069\u306e\u5ea6\u6570\u6cd5\u3092\u5229\u7528\u3057\u3066\u89d2\u5ea6\u3092\u8868\u3057\u307e\u3059\u3002\u5186\u306e\u4e2d\u5fc3\u306e\u4e00\u5468\u306f360\u00b0\u3067\u3042\u308a\u3001\u76f4\u89d2\u306f90\u00b0\u3067\u3059\u3002<\/p>\n<p>\u305f\u3060\u89d2\u5ea6\u3092\u5229\u7528\u3057\u3066\u8a08\u7b97\u554f\u984c\u3092\u89e3\u304f\u3068\u304d\u3001\u6570\u5b66\u3084\u7269\u7406\u3067\u306f\u5ea6\u6570\u6cd5\u3067\u306f\u306a\u304f\u3001\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3059\u308b\u5834\u9762\u304c\u591a\u3044\u3067\u3059\u3002\u5f27\u5ea6\u6cd5\u3067\u306f\u3001\\(360\u00b0\uff1d2\u03c0\\)\u3068\u8003\u3048\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(30\u00b0=\\displaystyle\\frac{\u03c0}{6}\\)<\/li>\n<li>\\(45\u00b0=\\displaystyle\\frac{\u03c0}{4}\\)<\/li>\n<li>\\(60\u00b0=\\displaystyle\\frac{\u03c0}{3}\\)<\/li>\n<li>\\(90\u00b0=\\displaystyle\\frac{\u03c0}{2}\\)<\/li>\n<li>\\(180\u00b0=\u03c0\\)<\/li>\n<\/ul>\n<p>\u5f27\u5ea6\u6cd5\u3067\u306f\u3001\\(180\u00b0=\u03c0\\)\u3068\u306a\u308b\u3053\u3068\u3092\u899a\u3048\u307e\u3057\u3087\u3046\u3002\u307e\u305f<span style=\"color: #ff0000;\">\u5ea6\u6570\u6cd5\u3067\u306e\u89d2\u5ea6\u304c\u6e1b\u5c11\u3059\u308b\u3068\u3001\u5f27\u5ea6\u6cd5\u3067\u3082\u540c\u3058\u5272\u5408\u3067\u5024\u304c\u6e1b\u5c11\u3057\u307e\u3059\u3002<\/span>\u4f8b\u3048\u3070\\(180\u00b0\u00f76=30\u00b0\\)\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u300130\u00b0\u3092\u5f27\u5ea6\u6cd5\u3067\u8868\u3059\u3068\\(\\displaystyle\\frac{\u03c0}{6}\\)\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u5ea6\u6570\u6cd5\u3092\u5f27\u5ea6\u6cd5\u3078\u5909\u63db\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002\u53cd\u5bfe\u306b\u3001\u5f27\u5ea6\u6cd5\u3092\u5ea6\u6570\u6cd5\u3078\u5909\u63db\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u6247\u5f62\u306e\u5f27\u306e\u9577\u3055\u3068\u9762\u7a4d\u306e\u8a08\u7b97<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u306a\u305c\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3057\u3066\u89d2\u5ea6\u3092\u8868\u3059\u5fc5\u8981\u304c\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u5ea6\u6570\u6cd5\u3067\u306f\u306a\u304f\u3001\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u6247\u5f62\u3084\u5186\u3092\u5229\u7528\u3057\u3066\u8a08\u7b97\u3059\u308b\u3068\u304d\u306b\u4fbf\u5229\u3067\u3059\u3002<span style=\"color: #0000ff;\">\u6247\u5f62\u306e\u5f27\u306e\u9577\u3055\u3068\u534a\u5f84\u306b\u3088\u308b\u6bd4\u306b\u7740\u76ee\u3057\u3066\u89d2\u5ea6\u3092\u8868\u3059\u65b9\u6cd5\u304c\u5f27\u5ea6\u6cd5\u3067\u3059\u3002<\/span><\/p>\n<p>\u534a\u5f84\\(r\\)\u306e\u5186\u3067\u306f\u3001\u5186\u5468\u306e\u9577\u3055\u306f\\(2\u03c0r\\)\u3067\u3059\u3002\u305d\u3053\u3067\u3001\u524d\u8ff0\u306e\u901a\u308a\\(360\u00b0\uff1d2\u03c0\\)\u3068\u8a2d\u5b9a\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u3068\u304d\u3001\u5186\u5468\u306e\u9577\u3055\u306f\u5f27\u5ea6\u6cd5\u3067\u306e\u89d2\u5ea6\u306e\u5927\u304d\u3055\u306b\u3088\u3063\u3066\u5909\u5316\u3057\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(30\u00b0:\\displaystyle\\frac{\u03c0}{6}r\\)<\/li>\n<li>\\(45\u00b0:\\displaystyle\\frac{\u03c0}{4}r\\)<\/li>\n<li>\\(60\u00b0:\\displaystyle\\frac{\u03c0}{3}r\\)<\/li>\n<li>\\(90\u00b0:\\displaystyle\\frac{\u03c0}{2}r\\)<\/li>\n<li>\\(180\u00b0:\u03c0r\\)<\/li>\n<li>\\(360\u00b0:2\u03c0r\\)<\/li>\n<\/ul>\n<p>\u6247\u5f62\u306e\u5f27\u306e\u9577\u3055\u306f\u89d2\u5ea6\u306e\u5927\u304d\u3055\u306b\u6bd4\u4f8b\u3059\u308b\u305f\u3081\u3001\u3053\u306e\u95a2\u4fc2\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002\u305d\u3053\u3067\u6247\u5f62\u306e\u5f27\u306e\u9577\u3055\u3092\\(l\\)\u3001\u5f27\u5ea6\u6cd5\u3067\u306e\u89d2\u5ea6\u3092\\(\u03b8\\)\u3068\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u516c\u5f0f\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(l=r\u03b8\\)<\/li>\n<\/ul>\n<p>\u5f53\u305f\u308a\u524d\u306e\u5185\u5bb9\u3092\u8868\u3057\u3066\u3044\u308b\u516c\u5f0f\u3067\u3059\u304c\u3001\u3053\u306e\u3088\u3046\u306b\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u5f27\u306e\u9577\u3055\u306e\u8a08\u7b97\u304c\u697d\u3067\u3059\u3002\u5f27\u5ea6\u6cd5\u3067\u306e\u89d2\u5ea6\u3068\u3044\u3046\u306e\u306f\u3001\u5f27\u306e\u9577\u3055\u3068\u5bc6\u63a5\u306a\u95a2\u4fc2\u304c\u3042\u308b\u306e\u3067\u3059\u3002<\/p>\n<p><strong>\u30fb\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3057\u3066\u6247\u5f62\u306e\u9762\u7a4d\u3092\u5f97\u308b<\/strong><\/p>\n<p>\u6b21\u306b\u3001\u5f27\u5ea6\u6cd5\u3092\u7528\u3044\u3066\u6247\u5f62\u306e\u9762\u7a4d\u3092\u8a08\u7b97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002\u5186\u5468\u3068\u540c\u3058\u3088\u3046\u306b\u3001\u9762\u7a4d\u3082\u89d2\u5ea6\u306b\u6bd4\u4f8b\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u6247\u5f62\u306e\u9762\u7a4d\u3092\\(S\\)\u3001\u89d2\u5ea6\u3092\\(\u03b8\\)\u3068\u3059\u308b\u3068\u3001\u5186\u306e\u9762\u7a4d\u306f\\(r^2\u03c0\\)\u3067\u3042\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u95a2\u4fc2\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(r^2\u03c0:S=2\u03c0:\u03b8\\)<\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u3053\u306e\u5f0f\u3092\u8a08\u7b97\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(2\u03c0S=r^2\u03c0\u03b8\\)<\/p>\n<p>\\(S=\\displaystyle\\frac{1}{2}r^2\u03b8\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\u516c\u5f0f\u3068\u3057\u3066\\(S=\\displaystyle\\frac{1}{2}r^2\u03b8\\)\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3057\u305f\u3002\u307e\u305f\\(l=r\u03b8\\)\u3067\u3042\u308b\u305f\u3081\u3001\u516c\u5f0f\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5909\u5f62\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(S=\\displaystyle\\frac{1}{2}rl\\)<\/li>\n<\/ul>\n<p>\u6247\u5f62\u306e\u9762\u7a4d\u3092\u5f97\u308b\u516c\u5f0f\u3092\u899a\u3048\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3053\u3053\u306b\u8a18\u3057\u305f\u901a\u308a\u3001\u7c21\u5358\u306a\u8a08\u7b97\u306b\u3088\u3063\u3066\u516c\u5f0f\u3092\u5c0e\u51fa\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<h2>\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3057\u3066\u4e09\u89d2\u95a2\u6570\u3092\u8868\u3059<\/h2>\n<p>\u5f27\u5ea6\u6cd5\u306b\u3088\u308b\u89d2\u5ea6\u306e\u610f\u5473\u3092\u7406\u89e3\u3057\u305f\u3089\u3001\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3057\u3066\u4e09\u89d2\u95a2\u6570\u3092\u8868\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\\(30\u00b0=\\displaystyle\\frac{\u03c0}{6}\\)\u3092sin\u03b8\u3084cos\u03b8\u3001tan\u03b8\u3067\u8868\u3059\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(sin\\displaystyle\\frac{\u03c0}{6}=\\displaystyle\\frac{1}{2}\\)<\/li>\n<li>\\(cos\\displaystyle\\frac{\u03c0}{6}=\\displaystyle\\frac{\\sqrt{3}}{2}\\)<\/li>\n<li>\\(tan\\displaystyle\\frac{\u03c0}{6}=\\displaystyle\\frac{1}{\\sqrt{3}}\\)<\/li>\n<\/ul>\n<p>\u4e09\u89d2\u6bd4\u3092\u5b66\u3093\u3067\u304a\u308a\u3001\u5ea6\u6570\u6cd5\u3067\u306e\u8a08\u7b97\u3092\u884c\u3048\u308b\u5834\u5408\u3001\u3053\u306e\u8a08\u7b97\u306b\u3064\u3044\u3066\u306f\u554f\u984c\u306a\u304f\u884c\u3048\u308b\u3068\u601d\u3044\u307e\u3059\u3002sin\u03b8\u3001cos\u03b8\u3001tan\u03b8\u306e\u5024\u3092\u5f97\u308b\u3068\u304d\u3001\u5f27\u5ea6\u6cd5\u3092\u5ea6\u6570\u6cd5\u306b\u76f4\u3059\u3068\u8a08\u7b97\u3057\u3084\u3059\u3044\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u5f27\u5ea6\u6cd5\u3067\u306f\u3001\u4e09\u89d2\u6bd4\u3067\u5b66\u3093\u3060\u4ee5\u4e0b\u306e\u516c\u5f0f\u3092\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(sin^2\u03b8+cos^2\u03b8=1\\)<\/li>\n<li>\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)<\/li>\n<li>\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)<\/li>\n<\/ul>\n<p><span style=\"color: #0000ff;\">\u5ea6\u6570\u6cd5\u3082\u5f27\u5ea6\u6cd5\u3082\u6982\u5ff5\u306f\u540c\u3058\u3067\u3042\u308a\u3001\u89d2\u5ea6\u306e\u8868\u8a18\u6cd5\u304c\u9055\u3046\u3060\u3051\u3067\u3059\u3002<\/span>\u305d\u306e\u305f\u3081\u3001\u5229\u7528\u3059\u308b\u516c\u5f0f\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<h3>\u89d2\u5ea6\u306e\u5909\u5316\u306b\u3088\u308b\u4e09\u89d2\u95a2\u6570\u306e\u5909\u5316<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u89d2\u5ea6\u306e\u5909\u5316\u306b\u3088\u3063\u3066\u3069\u306e\u3088\u3046\u306b\u4e09\u89d2\u95a2\u6570\u304c\u5909\u308f\u308b\u306e\u304b\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u89d2\u5ea6\u3092\u8db3\u3057\u305f\u308a\u5f15\u3044\u305f\u308a\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u4e09\u89d2\u6bd4\u304c\u5909\u5316\u3059\u308b\u3053\u3068\u3092\u65e2\u306b\u5b66\u3093\u3067\u3044\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u56f3\u304c\u3042\u308b\u3068\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/reyuk6.jpg\" alt=\"\" width=\"600\" height=\"243\" class=\"aligncenter size-full wp-image-4805\" \/><\/p>\n<p>\u3053\u306e\u56f3\u306b\u3064\u3044\u3066\u3001\u4e09\u89d2\u6bd4\u3067\u306f\u4ee5\u4e0b\u306e\u95a2\u4fc2\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(sin(90\u00b0-\u03b8)=cos\u03b8\\)<\/li>\n<li>\\(cos(90\u00b0-\u03b8)=sin\u03b8\\)<\/li>\n<li>\\(tan(90\u00b0-\u03b8)=\\displaystyle\\frac{1}{tan\u03b8}\\)<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/reyuk13.jpg\" alt=\"\" width=\"600\" height=\"239\" class=\"aligncenter size-full wp-image-4803\" \/><\/p>\n<p>\u5f27\u5ea6\u6cd5\u3067\u3042\u3063\u3066\u3082\u3001\u540c\u3058\u3088\u3046\u306b\u89d2\u5ea6\u3092\u8db3\u3057\u305f\u308a\u5f15\u3044\u305f\u308a\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u5024\u304c\u5909\u5316\u3057\u307e\u3059\u3002\u56f3\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u3069\u306e\u3088\u3046\u306b\u5024\u304c\u5909\u5316\u3059\u308b\u306e\u304b\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n<p><strong>\u30fb\\(\u03b8+2\u03c0n\\)\u306e\u4e09\u89d2\u95a2\u6570\uff1a\\(n\\)\u306f\u6574\u6570<\/strong><\/p>\n<p>\u524d\u8ff0\u306e\u901a\u308a\u3001\\(360\u00b0=2\u03c0\\)\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4f8b\u3048\u3070\\(3\u03c0=\u03c0\\)\u3067\u3042\u308a\u3001\\(\\displaystyle\\frac{9}{2}\u03c0=\\displaystyle\\frac{1}{2}\u03c0\\)\u3067\u3059\u3002\u89d2\u5ea6\u304c\\(\u03b8+2\u03c0n\\)\uff08\\(n\\)\u306f\u6574\u6570\uff09\u306e\u3068\u304d\u3001\u89d2\u5ea6\u3092\\(\u03b8\\)\u3068\u8003\u3048\u3066\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p><strong>\u30fb\\(-\u03b8\\)\u306e\u4e09\u89d2\u95a2\u6570<\/strong><\/p>\n<p>\\(-\u03b8\\)\u3068\u306a\u308b\u5834\u5408\u3001\\(\u03b8\\)\u306b\u6bd4\u3079\u3066\\(x\\)\u8ef8\u306e\u5ea7\u6a19\u306f\u5909\u5316\u3057\u307e\u305b\u3093\u3002\u4e00\u65b9\u3001\\(y\\)\u5ea7\u6a19\u306e\u7b26\u53f7\u306f\u30d7\u30e9\u30b9\u304b\u3089\u30de\u30a4\u30ca\u30b9\uff08\u307e\u305f\u306f\u30de\u30a4\u30ca\u30b9\u304b\u3089\u30d7\u30e9\u30b9\uff09\u3078\u3068\u5909\u5316\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5909\u5316\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(sin(-\u03b8)=-sin\u03b8\\)<\/li>\n<li>\\(cos(-\u03b8)=cos\u03b8\\)<\/li>\n<li>\\(tan(-\u03b8)=-tan\u03b8\\)<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/ttf1.jpg\" alt=\"\" width=\"600\" height=\"365\" class=\"aligncenter size-full wp-image-11333\" \/><\/p>\n<p><strong>\u30fb\\(\u03b8+\u03c0\\)\u306e\u4e09\u89d2\u95a2\u6570<\/strong><\/p>\n<p>\u89d2\u5ea6\u306b\u5bfe\u3057\u3066\\(\u03c0\\)\u3092\u8db3\u3059\u3068\u3044\u3046\u306e\u306f\u3001180\u00b0\u304c\u52a0\u308f\u308b\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3002\u03b8\u306b\u5bfe\u3057\u3066180\u00b0\u3092\u8db3\u3059\u3068\u304d\u3001\u4e09\u89d2\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5909\u5316\u3057\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(sin(\u03b8+\u03c0)=-sin\u03b8\\)<\/li>\n<li>\\(cos(\u03b8+\u03c0)=-cos\u03b8\\)<\/li>\n<li>\\(tan(\u03b8+\u03c0)=tan\u03b8\\)<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/ttf5.jpg\" alt=\"\" width=\"600\" height=\"361\" class=\"aligncenter size-full wp-image-11337\" \/><\/p>\n<p>\u56f3\u3092\u78ba\u8a8d\u3059\u308c\u3070\u3001\u306a\u305c\u3053\u306e\u3088\u3046\u306b\u5909\u5316\u3059\u308b\u306e\u304b\u7406\u89e3\u3067\u304d\u307e\u3059\u3002\u56f3\u3092\u63cf\u304b\u306a\u3044\u3068\u308f\u304b\u3089\u306a\u3044\u305f\u3081\u3001\u6bce\u56de\u56f3\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067\u4e09\u89d2\u95a2\u6570\u3092\u5909\u63db\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u30fb\\(\u03b8+\\displaystyle\\frac{\u03c0}{2}\\)\u306e\u4e09\u89d2\u95a2\u6570<\/strong><\/p>\n<p>\u89d2\u5ea6\u304c\\(\\displaystyle\\frac{\u03c0}{2}\\)\u52a0\u308f\u308b\u3068\u3044\u3046\u306e\u306f\u300190\u00b0\u3092\u8db3\u3059\u3053\u3068\u3092\u610f\u5473\u3057\u3066\u3044\u307e\u3059\u3002\u89d2\u5ea6\u304c90\u00b0\u5909\u5316\u3059\u308b\u3068\u304d\u3001\u4e09\u89d2\u95a2\u6570\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/djrh8.jpg\" alt=\"\" width=\"600\" height=\"312\" class=\"aligncenter size-full wp-image-11396\" \/><\/p>\n<p>\u516c\u5f0f\u3092\u899a\u3048\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u56f3\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u4e09\u89d2\u95a2\u6570\u3092\u5909\u63db\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3>\u4e09\u89d2\u95a2\u6570\u306e\u30b0\u30e9\u30d5\uff1asin\u03b8\u3001cos\u03b8\u3001tan\u03b8<\/h3>\n<p>\u4e09\u89d2\u95a2\u6570\u3067\u91cd\u8981\u306a\u5185\u5bb9\u306e\u4e00\u3064\u306b\u30b0\u30e9\u30d5\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u7269\u7406\u3067\u306f\u3001\u524d\u8ff0\u306e\u901a\u308a\u4e09\u89d2\u95a2\u6570\u3092\u5229\u7528\u3057\u3066\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3072\u3093\u3071\u3093\u306b\u3042\u308a\u307e\u3059\u3002\u4e09\u89d2\u95a2\u6570\u3067\u30b0\u30e9\u30d5\u3092\u7406\u89e3\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u6570\u5b66\u3060\u3051\u3067\u306a\u304f\u3001\u7269\u7406\u306e\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u4e09\u89d2\u95a2\u6570\u306b\u3088\u308b\u89d2\u5ea6\u306e\u5909\u5316\u3068\u56f3\u5f62\u306e\u69d8\u5b50\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u30fbsin\u03b8\u306e\u56f3\u5f62<\/strong><\/p>\n<p>sin\u03b8\u306e\u7bc4\u56f2\u306f\\(-1\u2266sin\u03b8\u22661\\)\u3067\u3059\u3002\u307e\u305f\u89d2\u5ea6\u3068sin\u03b8\u306e\u5024\u3092\u78ba\u8a8d\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(sin0=0\\)<\/li>\n<li>\\(sin\\displaystyle\\frac{\u03c0}{2}=1\\)<\/li>\n<li>\\(sin\u03c0=0\\)<\/li>\n<li>\\(sin\\displaystyle\\frac{3\u03c0}{2}=-1\\)<\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u3001\u89d2\u5ea6\u3068sin\u03b8\u306e\u5024\u3092\u30b0\u30e9\u30d5\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/ttf10.jpg\" alt=\"\" width=\"600\" height=\"217\" class=\"aligncenter size-full wp-image-11342\" \/><\/p>\n<p><strong>\u30fbcos\u03b8\u306e\u56f3\u5f62<\/strong><\/p>\n<p>cos\u03b8\u306e\u7bc4\u56f2\u306f\\(-1\u2266cos\u03b8\u22661\\)\u3067\u3059\u3002\u89d2\u5ea6\u3068cos\u03b8\u306e\u5024\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(cos0=1\\)<\/li>\n<li>\\(cos\\displaystyle\\frac{\u03c0}{2}=0\\)<\/li>\n<li>\\(cos\u03c0=-1\\)<\/li>\n<li>\\(cos\\displaystyle\\frac{3\u03c0}{2}=0\\)<\/li>\n<\/ul>\n<p>sin\u03b8\u3068\u306f\u7570\u306a\u308a\u3001\\(\u03b8=0\\)\u306e\u3068\u304d\u3001\\(y\\)\u306e\u5024\u306f1\u3067\u3059\u3002\u89d2\u5ea6\u306e\u5909\u5316\u306b\u3088\u308b\\(y\\)\u306e\u5024\u3092\u56f3\u793a\u3059\u308b\u3068\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/ttf11.jpg\" alt=\"\" width=\"600\" height=\"216\" class=\"aligncenter size-full wp-image-11343\" \/><\/p>\n<p><strong>\u30fbtan\u03b8\u306e\u56f3\u5f62<\/strong><\/p>\n<p>sin\u03b8\u3084cos\u03b8\u3068\u306f\u7570\u306a\u308a\u3001tan\u03b8\u3067\u306f1\u3088\u308a\u3082\u5927\u304d\u3044\u5024\uff08\u307e\u305f\u306f1\u3088\u308a\u3082\u5c0f\u3055\u3044\u5024\uff09\u3068\u306a\u308b\u30b1\u30fc\u30b9\u304c\u3072\u3093\u3071\u3093\u306b\u3042\u308a\u307e\u3059\u3002\u307e\u305ftan\u03b8\u3067\u306f\u3001\\(\u03b8=90\u00b0=\\displaystyle\\frac{\u03c0}{2}\\)\u306e\u3068\u304d\u3001\u5024\u304c\u7121\u9650\u5927\u306b\u306a\u308a\u307e\u3059\u3002\u540c\u69d8\u306b\\(\u03b8=-90\u00b0=-\\displaystyle\\frac{\u03c0}{2}\\)\u306e\u3068\u304d\u3001tan\u03b8\u306e\u5024\u306f\u30de\u30a4\u30ca\u30b9\u306b\u7121\u9650\u5927\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u3064\u307e\u308a\u3001tan\u03b8\u306f\\(-\\displaystyle\\frac{\u03c0}{2}&lt;\u03b8&lt;\\displaystyle\\frac{\u03c0}{2}\\)\u3067\u4e00\u3064\u306e\u533a\u5207\u308a\u3067\u3059\u3002\u4ee5\u4e0b\u304ctan\u03b8\u306e\u56f3\u5f62\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/ttf12.jpg\" alt=\"\" width=\"600\" height=\"371\" class=\"aligncenter size-full wp-image-11344\" \/><\/p>\n<h3>\u4e09\u89d2\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u306e\u5e73\u884c\u79fb\u52d5\u3068\u62e1\u5927\u30fb\u7e2e\u5c0f<\/h3>\n<p>\u4e09\u89d2\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u3067\u306f\u3001\u89d2\u5ea6\u306e\u5909\u5316\u306b\u3088\u308b\u5e73\u884c\u79fb\u52d5\u3084\u30b0\u30e9\u30d5\u306e\u62e1\u5927\u30fb\u7e2e\u5c0f\u3092\u5b66\u3073\u307e\u3057\u3087\u3046\u3002\u7269\u7406\u3067\u306f\u5186\u904b\u52d5\u3084\u6ce2\u52d5\u3001\u96fb\u78c1\u6c17\u3067\u3072\u3093\u3071\u3093\u306b\u4e09\u89d2\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u304c\u5229\u7528\u3055\u308c\u308b\u305f\u3081\u3001\u5fc5\u305a\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u5185\u5bb9\u3067\u3059\u3002<\/p>\n<p><strong>\u30fb\u89d2\u5ea6\u306e\u5909\u5316\u3068\u30b0\u30e9\u30d5\u306e\u5e73\u884c\u79fb\u52d5<\/strong><\/p>\n<p>\u307e\u305a\u3001\u30b0\u30e9\u30d5\u306e\u5e73\u884c\u79fb\u52d5\u3092\u78ba\u8a8d\u3057\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u30b0\u30e9\u30d5\u306f\u3069\u306e\u3088\u3046\u306b\u63cf\u3051\u3070\u3044\u3044\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\\(y=sin\\left(\u03b8-\\displaystyle\\frac{\u03c0}{2}\\right)\\)<\/li>\n<\/ul>\n<p>\\(\u03b8=\\displaystyle\\frac{\u03c0}{2}\\)\u306e\u5834\u5408\u3001\\(y=sin\\left(\u03b8-\\displaystyle\\frac{\u03c0}{2}\\right)\\)\u306e\u5024\u306f0\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\\(sin\u03b8\\)\u306e\u30b0\u30e9\u30d5\u306b\u5bfe\u3057\u3066\u3001\u03b8\u65b9\u5411\u306b\\(\\displaystyle\\frac{\u03c0}{2}\\)\u5e73\u884c\u79fb\u52d5\u3057\u305f\u56f3\u304c\\(y=sin\\left(\u03b8-\\displaystyle\\frac{\u03c0}{2}\\right)\\)\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/ttf13.jpg\" alt=\"\" width=\"600\" height=\"237\" class=\"aligncenter size-full wp-image-11346\" \/><\/p>\n<p>\u56f3\u3092\u78ba\u8a8d\u3059\u308b\u3068\u3001\\(y=sin\\left(\u03b8-\\displaystyle\\frac{\u03c0}{2}\\right)\\)\u306f\\(y=-cos\u03b8\\)\u3068\u540c\u3058\u3068\u308f\u304b\u308a\u307e\u3059\u3002\u89d2\u5ea6\u304c\\(\\displaystyle\\frac{\u03c0}{2}\\)\u305a\u308c\u308b\u5834\u5408\u3001sin\u03b8\u3092cos\u03b8\u3078\u5909\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u6761\u4ef6\u306b\u3088\u3063\u3066\u306f\u3001cos\u03b8\u3092sin\u03b8\u3078\u5909\u63db\u3059\u308b\u3053\u3068\u3082\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<p><strong>\u30fb\u30b0\u30e9\u30d5\u306e\u62e1\u5927\u30fb\u7e2e\u5c0f<\/strong><\/p>\n<p>\\(y=asin\u03b8\\)\u306e\u30b0\u30e9\u30d5\u3067\u306f\u3001\\(y=sin\u03b8\\)\u306e\u30b0\u30e9\u30d5\u306b\u5bfe\u3057\u3066\u5927\u304d\u3055\u304c\\(a\\)\u500d\u3068\u306a\u308a\u307e\u3059\u3002\u4f8b\u3048\u3070\\(y=2sin\u03b8\\)\u306e\u5834\u5408\u3001\u5927\u304d\u3055\u306f\\(y=sin\u03b8\\)\u306e2\u500d\u3068\u306a\u308a\u307e\u3059\u3002\u5177\u4f53\u7684\u306b\u306f\u3001\\(-2\u2266y\u22662\\)\u3068\u306a\u308a\u307e\u3059\u3002\u4e00\u65b9\u3067\\(y=\\displaystyle\\frac{1}{2}sin\u03b8\\)\u306e\u5834\u5408\u3001\u5927\u304d\u3055\u306f\\(y=sin\u03b8\\)\u306e\\(\\displaystyle\\frac{1}{2}\\)\u500d\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/ttf14.jpg\" alt=\"\" width=\"600\" height=\"180\" class=\"aligncenter size-full wp-image-11347\" \/><\/p>\n<p><strong>\u30fb\u5468\u671f\u306e\u5909\u5316<\/strong><\/p>\n<p>sin\u03b8\u3068cos\u03b8\u3067\u306f\u3001\u540c\u3058\u904b\u52d5\u304c\u7e70\u308a\u8fd4\u3055\u308c\u307e\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u5143\u306e\u5834\u6240\u306b\u623b\u308b\u307e\u3067\u306e\u671f\u9593\u3092\u5468\u671f\u3068\u3044\u3044\u307e\u3059\u3002\u4f8b\u3048\u3070<span style=\"color: #0000ff;\">sin\u03b8\u306e\u5468\u671f\u306f\\(2\u03c0\\)\u3067\u3059\u3002<\/span>\\(2\u03c0\\)\u304c\u7d4c\u904e\u3059\u308b\u3068\u3001\u5143\u306e\u5834\u6240\u306b\u623b\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\\(sink\u03b8\\)\u306e\u5468\u671f\u306f\u3069\u3046\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002\u4f8b\u3048\u3070\\(sin2\u03b8\\)\u3067\u306f\u3001\\(\u03b8=\u03c0\\)\u306e\u3068\u304d\u3001\\(2\u03c0\\)\u9032\u3080\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u5468\u671f\u306f\\(\u03c0\\)\u3067\u3042\u308a\u3001\\(2\u03c0\\)\u306e\u3068\u304d\u306b\u6bd4\u3079\u3066\u5468\u671f\u306f\u03b8\u8ef8\u65b9\u5411\u306b\\(\\displaystyle\\frac{1}{2}\\)\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/djrh9.jpg\" alt=\"\" width=\"600\" height=\"217\" class=\"aligncenter size-full wp-image-11397\" \/><\/p>\n<p>\u4e00\u65b9\u3067\\(sin\\displaystyle\\frac{\u03b8}{2}\\)\u3067\u306f\u3001\\(\u03b8=4\u03c0\\)\u306e\u3068\u304d\u3001\\(2\u03c0\\)\u9032\u3080\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\u3064\u307e\u308a\u5468\u671f\u306f\\(4\u03c0\\)\u3067\u3042\u308a\u3001\u5468\u671f\u304c\\(2\u03c0\\)\u306e\u3068\u304d\u306b\u6bd4\u3079\u3066\u3001\u5468\u671f\u306f\u03b8\u8ef8\u65b9\u5411\u306b2\u500d\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/11\/djrh10.jpg\" alt=\"\" width=\"600\" height=\"247\" class=\"aligncenter size-full wp-image-11398\" \/><\/p>\n<p>\\(sink\u03b8\\)\u3067\u306f\u3001\\(\\displaystyle\\frac{1}{k}\\)\u500d\u306b\u5468\u671f\u304c\u62e1\u5927\u307e\u305f\u306f\u7e2e\u5c0f\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002\\(k\\)\u500d\u3067\u306f\u306a\u3044\u3053\u3068\u306b\u6ce8\u610f\u3057\u307e\u3057\u3087\u3046\u3002\u4e09\u89d2\u95a2\u6570\u306e\u30b0\u30e9\u30d5\u306b\u3064\u3044\u3066\u3001\u5e73\u884c\u79fb\u52d5\u3084\u62e1\u5927\u30fb\u7e2e\u5c0f\u306f\u57fa\u672c\u7684\u306a\u5185\u5bb9\u306e\u4e00\u3064\u3067\u3042\u308b\u305f\u3081\u3001\u5fc5\u305a\u7406\u89e3\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2>\u4e09\u89d2\u95a2\u6570\u306e\u57fa\u672c\u3068\u5f27\u5ea6\u6cd5\u3092\u5b66\u3076<\/h2>\n<p>\u79c1\u305f\u3061\u306b\u3068\u3063\u3066\u5ea6\u6570\u6cd5\u306e\u307b\u3046\u304c\u8eab\u8fd1\u3067\u3059\u3002\u305f\u3060\u6570\u5b66\u3084\u7269\u7406\u3067\u306f\u3001\u5ea6\u6570\u6cd5\u3067\u306f\u306a\u304f\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3059\u308b\u30b1\u30fc\u30b9\u304c\u591a\u3044\u3067\u3059\u3002\u7279\u306b\u7269\u7406\u3067\u306f\u3001\u5f27\u5ea6\u6cd5\u3092\u7406\u89e3\u3057\u3066\u3044\u306a\u3044\u3068\u8a08\u7b97\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u305d\u3053\u3067\u3001\u5ea6\u6570\u6cd5\u3068\u5f27\u5ea6\u6cd5\u306e\u4e21\u65b9\u3092\u5229\u7528\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u6247\u5f62\u306e\u5f27\u306e\u9577\u3055\u306b\u7740\u76ee\u3057\u3066\u89d2\u5ea6\u3092\u8868\u3059\u65b9\u6cd5\u304c\u5f27\u5ea6\u6cd5\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u6247\u5f62\u306e\u5f27\u306e\u9577\u3055\u3084\u9762\u7a4d\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u5f27\u5ea6\u6cd5\u3092\u5229\u7528\u3057\u3066\u4e09\u89d2\u95a2\u6570\u3092\u8868\u305b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002\u5ea6\u6570\u6cd5\u3092\u7528\u3044\u308b\u4e09\u89d2\u6bd4\u3068\u5185\u5bb9\u306f\u540c\u3058\u3067\u3042\u308a\u3001\u5f27\u5ea6\u6cd5\u3092\u7528\u3044\u3066sin\u03b8\u3084cos\u03b8\u3001tan\u03b8\u3092\u8868\u8a18\u3059\u308b\u306e\u3067\u3059\u3002\u3053\u306e\u3068\u304d\u30b0\u30e9\u30d5\u3092\u63cf\u3051\u308b\u3088\u3046\u306b\u306a\u308a\u3001\u5e73\u884c\u79fb\u52d5\u3084\u62e1\u5927\u30fb\u7e2e\u5c0f\u3001\u5468\u671f\u306e\u8a08\u7b97\u3092\u884c\u3048\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u3053\u3053\u307e\u3067\u3001\u5f27\u5ea6\u6cd5\u3092\u7528\u3044\u308b\u4e09\u89d2\u95a2\u6570\u3092\u89e3\u8aac\u3057\u3066\u304d\u307e\u3057\u305f\u3002\u3059\u3079\u3066\u57fa\u672c\u7684\u306a\u5185\u5bb9\u3067\u3042\u308b\u305f\u3081\u3001\u5fc5\u305a\u5185\u5bb9\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6570\u5b66\u3067\u5fc5\u305a\u7406\u89e3\u3057\u306a\u3051\u308c\u3070\u3044\u3051\u306a\u3044\u5185\u5bb9\u306b\u5f27\u5ea6\u6cd5\uff08\u30e9\u30b8\u30a2\u30f3\uff09\u3068\u4e09\u89d2\u95a2\u6570\u304c\u3042\u308a\u307e\u3059\u3002\u7269\u7406\u3067\u306f\u4e09\u89d2\u95a2\u6570\u3092\u5229\u7528\u3057\u3066\u8a08\u7b97\u3059\u308b\u5834\u9762\u304c\u3072\u3093\u3071\u3093\u306b\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u6570\u5b66\u3060\u3051\u3067\u306a\u304f\u3001\u7269\u7406\u3067\u3082\u4e09\u89d2\u95a2\u6570\u306f\u91cd\u8981\u306a\u5b66\u7fd2\u5185\u5bb9\u3067\u3059\u3002 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