{"id":4785,"date":"2022-03-07T21:29:32","date_gmt":"2022-03-07T12:29:32","guid":{"rendered":"https:\/\/hatsudy.com\/jp\/?p=4785"},"modified":"2022-07-14T00:42:10","modified_gmt":"2022-07-13T15:42:10","slug":"trigonometric-functions","status":"publish","type":"post","link":"https:\/\/hatsudy.com\/jp\/trigonometric-functions.html","title":{"rendered":"\u4e09\u89d2\u6bd4\u306e\u57fa\u672c\uff1a\u89d2\u5ea6\u306b\u3088\u308bsin\u30fbcos\u30fbtan\u306e\u5024\u3068\u516c\u5f0f"},"content":{"rendered":"\n<p>\u56f3\u5f62\u306e\u554f\u984c\u3067\u91cd\u8981\u306a\u6982\u5ff5\u304c\u4e09\u89d2\u6bd4\u3067\u3059\u3002\u4e09\u89d2\u6bd4\u3092\u7fd2\u3046\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u8fba\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u89d2\u5ea6\u304c\u308f\u304b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u4e09\u89d2\u6bd4\u3092\u7406\u89e3\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u6570\u5b66\u306e\u554f\u984c\u3092\u89e3\u3051\u306a\u3044\u3060\u3051\u3067\u306a\u304f\u3001\u7269\u7406\u306e\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u3082\u3067\u304d\u307e\u305b\u3093\u3002\u591a\u304f\u306e\u5834\u9762\u3067\u5229\u7528\u3055\u308c\u308b\u306e\u304c\u4e09\u89d2\u6bd4\u3067\u3059\u3002<\/p>\n<p>\u305d\u308c\u3067\u306f\u3001\u4e09\u89d2\u6bd4\u3068\u306f\u4f55\u306a\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u4e09\u89d2\u6bd4\u306e\u57fa\u672c\u3092\u5b66\u3076\u3068\u304d\u3001\u3069\u306e\u3088\u3046\u306a\u516c\u5f0f\u304c\u3042\u308b\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u307e\u305f\u3001\u306a\u305c\u4e09\u89d2\u6bd4\u306f\u91cd\u8981\u306a\u306e\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p>\u4e00\u3064\u306e\u89d2\u5ea6\u3068\u8fba\u306e\u9577\u3055\u304c\u308f\u304b\u308c\u3070\u3001\u4e09\u89d2\u6bd4\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u3059\u3079\u3066\u306e\u89d2\u5ea6\u3068\u8fba\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u3069\u306e\u3088\u3046\u306b\u3057\u3066\u4e09\u89d2\u6bd4\u3092\u5229\u7528\u3057\u3001\u56f3\u5f62\u306e\u8fba\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308c\u3070\u3044\u3044\u306e\u304b\u89e3\u8aac\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<h2>\u4e09\u89d2\u6bd4\u306e\u5b9a\u7fa9\uff1asin\u3001cos\u3001tan\u306e\u899a\u3048\u65b9<\/h2>\n<p>\u307e\u305a\u3001\u4e09\u89d2\u6bd4\u3068\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u306e\u5b9a\u7fa9\u3092\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<span style=\"color: #0000ff;\">\u4e09\u89d2\u6bd4\u3067\u306f\u3001\u5fc5\u305a\u76f4\u89d2\u4e09\u89d2\u5f62\u3092\u5229\u7528\u3057\u307e\u3059\u3002<\/span>\u76f4\u89d2\u3092\u3082\u305f\u306a\u3044\u4e09\u89d2\u5f62\u3067\u306f\u3001\u4e09\u89d2\u6bd4\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u76f4\u89d2\u4e09\u89d2\u5f62\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\/yjdf1.jpg\" alt=\"\" width=\"300\" height=\"218\" class=\"aligncenter size-full wp-image-4787\" \/><\/p>\n<p>\u89d2\u5ea6\u3092\u03b8\u3068\u3059\u308b\u3068\u304d\u3001<span style=\"color: #ff0000;\">sin<\/span>e\uff08\u6b63\u5f26\uff1asin\uff09\u30fb<span style=\"color: #ff0000;\">cos<\/span>ine\uff08\u4f59\u5f26\uff1acos\uff09\u30fb<span style=\"color: #ff0000;\">tan<\/span>gent\uff08\u6b63\u63a5\uff1atan\uff09\u3092\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8868\u3057\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/yjdf2.jpg\" alt=\"\" width=\"550\" height=\"291\" class=\"aligncenter size-full wp-image-4788\" \/><\/p>\n<p>\u03b8\u306f\u89d2\u5ea6\u3067\u3042\u308b\u305f\u3081\u3001\u03b8\u306e\u5024\u306f\u7570\u306a\u308a\u307e\u3059\u3002\u03b8\u306e\u89d2\u5ea6\u304c10\u00b0\u306e\u3068\u304d\u304c\u3042\u308c\u3070\u300170\u00b0\u306e\u3068\u304d\u3082\u3042\u308a\u307e\u3059\u3002\u3044\u305a\u308c\u306b\u3057\u3066\u3082\u3001\u03b8\u306f\u89d2\u5ea6\u3067\u3042\u308b\u3068\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002\u3053\u306e\u3068\u304d\u3001\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u659c\u8fba\u3068\u305d\u306e\u4ed6\u306e\u8fba\u306e\u95a2\u4fc2\u3092\u8868\u3059\u306e\u304csin\u3001cos\u3001tan\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3068\u304dsin\u03b8\u3001cos\u03b8\u3001tan\u03b8\u306e\u5024\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/yjdf3.jpg\" alt=\"\" width=\"450\" height=\"271\" class=\"aligncenter size-full wp-image-4789\" \/><\/p>\n<p>sin\u3001cos\u3001tan\u306e\u5b9a\u7fa9\u3092\u5229\u7528\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u5024\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(sin\u03b8=\\displaystyle\\frac{3}{5}\\)<\/li>\n<li>\\(cos\u03b8=\\displaystyle\\frac{4}{5}\\)<\/li>\n<li>\\(tan\u03b8=\\displaystyle\\frac{3}{4}\\)<\/li>\n<\/ul>\n<p>\u300c\u4e00\u3064\u306e\u89d2\u5ea6\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u76f4\u89d2\u4e09\u89d2\u5f62\u306b\u3064\u3044\u3066\u3001\u8fba\u306e\u9577\u3055\u306e\u95a2\u4fc2\u3092\u8868\u3059\u306e\u304c\u4e09\u89d2\u6bd4\u300d\u3068\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><strong>\u30fbsin\u3001cos\u3001tan\u306e\u899a\u3048\u65b9<\/strong><\/p>\n<p>\u306a\u304a\u3001sin\u30fbcos\u30fbtan\u306b\u306f\u899a\u3048\u65b9\u304c\u3042\u308a\u307e\u3059\u3002<span style=\"color: #ff0000;\">s<\/span>in\u306b\u3064\u3044\u3066\u3001s\u3092\u7b46\u8a18\u4f53\u3092\u8868\u3059\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u3092\u4f7f\u3044\u307e\u3059\u3002\u307e\u305f<span style=\"color: #ff0000;\">c<\/span>os\u306b\u3064\u3044\u3066\u3001c\u3092\u5229\u7528\u3057\u307e\u3057\u3087\u3046\u3002<span style=\"color: #ff0000;\">t<\/span>an\u306b\u3064\u3044\u3066\u306ft\u3092\u4f7f\u3044\u307e\u3057\u3087\u3046\u3002\u305d\u3046\u3059\u308b\u3068\u3001\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\/03\/yjdf4.jpg\" alt=\"\" width=\"600\" height=\"333\" class=\"aligncenter size-full wp-image-4790\" \/><\/p>\n<p>sin\uff08\u6b63\u5f26\uff09\u306b\u3064\u3044\u3066\u306f\u3001s\u306e\u7b46\u8a18\u4f53\u3092\u601d\u3044\u6d6e\u304b\u3079\u307e\u3057\u3087\u3046\u3002s\u306e\u7b46\u8a18\u4f53\u306e\u66f8\u304d\u9806\u3092\u7406\u89e3\u3057\u3066\u3001\\(a\\)\uff08\u659c\u8fba\uff09\u3068\\(b\\)\u3092\u5206\u6570\u3067\u8868\u3057\u307e\u3059\u3002s\u306e\u7b46\u8a18\u4f53\u3092\u66f8\u304f\u3068\u304d\u3001\u659c\u8fba\\(a\\)\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3057\u3066\u3001\u53f3\u306e\u8fba\\(b\\)\u306b\u5230\u7740\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\\(sin\u03b8=\\displaystyle\\frac{b}{a}\\)\u3067\u3059\u3002<\/p>\n<p>cos\uff08\u4f59\u5f26\uff09\u306b\u3064\u3044\u3066\u3082\u3001c\u306e\u66f8\u304d\u9806\u3092\u601d\u3044\u6d6e\u304b\u3079\u307e\u3057\u3087\u3046\u3002c\u3092\u66f8\u304f\u3068\u304d\u3001\u659c\u8fba\\(a\\)\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3057\u3066\u3001\u4e0b\u306e\u8fba\\(c\\)\u306b\u5230\u7740\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\\(cos\u03b8=\\displaystyle\\frac{c}{a}\\)\u3067\u3059\u3002<\/p>\n<p>tan\uff08\u6b63\u63a5\uff09\u306e\u899a\u3048\u65b9\u3082\u540c\u3058\u3067\u3059\u3002t\u3092\u7b46\u8a18\u4f53\u3067\u66f8\u304f\u3068\u304d\u3001\u4e0b\u306e\u8fba\\(c\\)\u304b\u3089\u30b9\u30bf\u30fc\u30c8\u3057\u3066\u3001\u53f3\u306e\u8fba\\(b\\)\u306b\u5230\u7740\u3057\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\\(tan\u03b8=\\displaystyle\\frac{b}{c}\\)\u3067\u3059\u3002<\/p>\n<h3>30\u00b0\u300145\u00b0\u300160\u00b0\u3067\u306e\u4e09\u89d2\u6bd4\u306e\u5024<\/h3>\n<p>\u306a\u304a\u3001\u89d2\u5ea6\u304c\u9055\u3046\u3068sin\u3084cos\u3001tan\u306e\u5024\u304c\u5909\u308f\u308a\u307e\u3059\u3002\u305f\u3060\u89d2\u5ea6\u304c\u308f\u304b\u308c\u3070\u3001sin\u3084cos\u3001tan\u306e\u5024\u304c\u308f\u304b\u308a\u307e\u3059\u3002<span style=\"color: #0000ff;\">\u4e09\u89d2\u6bd4\u3068\u3044\u3046\u306e\u306f\u30013\u3064\u306e\u8fba\u306e\u6bd4\u3092\u6307\u3057\u307e\u3059\u3002<\/span>\u89d2\u5ea6\u304c\u540c\u3058\u5834\u5408\u30013\u3064\u306e\u8fba\u306e\u6bd4\u306f\u540c\u3058\u3067\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8fba\u306e\u9577\u3055\u304c\u9055\u3063\u3066\u3044\u305f\u3068\u3057\u3066\u3082\u30013\u3064\u306e\u8fba\u306e\u6bd4\u306f\u540c\u3058\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/yjdf5.jpg\" alt=\"\" width=\"600\" height=\"230\" class=\"aligncenter size-full wp-image-4791\" \/><\/p>\n<p>\u76f8\u4f3c\u306e\u56f3\u5f62\u3067\u306f\u3001\u8fba\u306e\u6bd4\u304c\u540c\u3058\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u76f8\u4f3c\u306e\u56f3\u5f62\u3067\u306fsin\u03b8\u3001cos\u03b8\u3001tan\u03b8\u306e\u5024\u304c\u540c\u3058\u306b\u306a\u308a\u307e\u3059\u3002\u3053\u308c\u304c\u3001\u89d2\u5ea6\u304c\u308f\u304b\u308b\u3068\u4e09\u89d2\u6bd4\u306e\u5024\u3092\u6c7a\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u7406\u7531\u3067\u3059\u3002<\/p>\n<p>\u3053\u3053\u307e\u3067\u306e\u5185\u5bb9\u3092\u7406\u89e3\u3057\u305f\u5f8c\u3001\u89d2\u5ea6\u304c30\u00b0\u308445\u00b0\u300160\u00b0\u306e\u3068\u304d\u306e\u4e09\u89d2\u6bd4\u3092\u51fa\u305b\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u89d2\u5ea6\u304c10\u00b0\u306e\u3068\u304d\u3001sin10\u00b0\u3084cos10\u00b0\u306e\u5024\u306f\u6c7a\u307e\u3063\u3066\u3044\u308b\u3082\u306e\u306e\u3001\u3053\u308c\u3089\u306e\u5024\u3092\u899a\u3048\u3066\u3044\u308b\u4eba\u306f\u3044\u307e\u305b\u3093\u3002\u4e00\u65b9\u3067\u89d2\u5ea6\u304c30\u00b0\u308445\u00b0\u300160\u00b0\u306e\u5834\u5408\u306f\u4f8b\u5916\u7684\u306b\u4e09\u89d2\u6bd4\u306e\u5024\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e09\u5e73\u65b9\u306e\u5b9a\u7406\u3092\u5b66\u3076\u3068\u304d\u3001\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u4e00\u3064\u306e\u89d2\u5ea6\u304c30\u00b0\u308445\u00b0\u306b\u306a\u308b\u5834\u5408\u3001\u8fba\u306e\u6bd4\u304c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308b\u3068\u6559\u308f\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/yjdf11.jpg\" alt=\"\" width=\"600\" height=\"238\" class=\"aligncenter size-full wp-image-4792\" \/><\/p>\n<p>\u5148\u307b\u3069\u89e3\u8aac\u3057\u305f\u901a\u308a\u3001\u89d2\u5ea6\u304c\u308f\u304b\u308c\u3070\u4e09\u89d2\u6bd4\u306e\u5024\u306f\u4e00\u5b9a\u3067\u3059\u3002\u3053\u306e\u3068\u304d\u3001\u89d2\u5ea6\u304c30\u00b0\u308445\u00b0\u300160\u00b0\u306e\u5834\u5408\u306b\u4e09\u89d2\u6bd4\u306f\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\/03\/yjdf10.jpg\" alt=\"\" width=\"600\" height=\"450\" class=\"aligncenter size-full wp-image-4793\" \/><\/p>\n<p>\u4e09\u89d2\u6bd4\u306e\u5024\u3092\u899a\u3048\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3064\u307e\u308a\u3001\u4f8b\u3048\u3070sin60\u00b0\u3084tan45\u00b0\u306e\u5024\u3092\u899a\u3048\u308b\u306e\u306f\u610f\u5473\u304c\u306a\u3044\u3067\u3059\u3002\u305d\u306e\u4ee3\u308f\u308a\u3001\u56f3\u3092\u63cf\u304d\u307e\u3057\u3087\u3046\u3002<span style=\"color: #0000ff;\">\u89d2\u5ea6\u304c30\u00b0\u308445\u00b0\u300160\u00b0\u3068\u306a\u308b\u76f4\u89d2\u4e09\u89d2\u5f62\u3092\u63cf\u304f\u306e\u3067\u3059\u3002<\/span>\u305d\u306e\u5f8c\u3001sin\u3084cos\u3001tan\u306e\u5024\u3092\u51fa\u3059\u306e\u304c\u6b63\u3057\u3044\u3084\u308a\u65b9\u3067\u3059\u3002<\/p>\n<h3>\u306a\u305c\u4e09\u89d2\u6bd4\u3092\u5b66\u3076\u306e\u304c\u91cd\u8981\u306a\u306e\u304b<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u306a\u305c\u79c1\u305f\u3061\u306f\u4e09\u89d2\u6bd4\u3092\u5b66\u3076\u306e\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u306e\u7406\u7531\u3068\u3057\u3066\u3001\u4e00\u3064\u306e\u89d2\u5ea6\u3068\u4e00\u3064\u306e\u8fba\u306e\u9577\u3055\u304c\u308f\u304b\u308c\u3070\u3001\u3059\u3079\u3066\u306e\u89d2\u5ea6\u3068\u8fba\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\\(b\\)\u306e\u9577\u3055\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/yjdf9.jpg\" alt=\"\" width=\"599\" height=\"179\" class=\"aligncenter size-full wp-image-4794\" \/><\/p>\n<p>sin30\u00b0\u306e\u5024\u306f\u540c\u3058\u3067\u3059\u3002\u76f4\u89d2\u4e09\u89d2\u5f62\u306b\u3088\u3063\u3066\u8fba\u306e\u9577\u3055\u306f\u9055\u3046\u3082\u306e\u306e\u3001\u8fba\u306e\u6bd4\u306f\u540c\u3058\u306a\u306e\u3067\u3059\u3002\u3053\u306e\u3068\u304d\u3001sin30\u00b0\u3067\u306f\u5206\u6bcd\u304c\u659c\u8fba\u306e\u9577\u3055\u306b\u306a\u308a\u3001\u5206\u5b50\u304c\u53f3\u306e\u8fba\u306e\u9577\u3055\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\\(sin30\u00b0=\\displaystyle\\frac{b}{6}\\)\u3068\u8868\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u8a00\u3044\u63db\u3048\u308b\u3068\u3001\\(sin30\u00b0\\)\u3068\u659c\u8fba\u306e\u9577\u3055\u3092\u304b\u3051\u308b\u3068\u3001\\(b\\)\u306e\u9577\u3055\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u53c2\u8003\u307e\u3067\u306b\u3001\u659c\u8fba\u306e\u9577\u3055\u306bsin\u03b8\u3092\u304b\u3051\u308b\u3068\u5fc5\u305a\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u305f\u3066\u306e\u9577\u3055\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002sin\u03b8\u306e\u5206\u6bcd\u306f\u659c\u8fba\u306e\u9577\u3055\u3067\u3042\u308b\u305f\u3081\u3001sin\u03b8\u306b\u659c\u8fba\u306e\u9577\u3055\u3092\u304b\u3051\u308b\u3053\u3068\u3067\u3001\u5206\u5b50\u306b\u3042\u308b\u305f\u3066\u306e\u9577\u3055\u306e\u307f\u6b8b\u308a\u307e\u3059\u3002<\/p>\n<p>\u307e\u305f\u5148\u307b\u3069\u8aac\u660e\u3057\u305f\u901a\u308a\u3001\\(sin30\u00b0=\\displaystyle\\frac{1}{2}\\)\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001\\(b\\)\u306e\u9577\u3055\u306f\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\\(b=6\u00d7sin30\u00b0\\)<\/p>\n<p>\\(b=6\u00d7\\displaystyle\\frac{1}{2}\\)<\/p>\n<p>\\(b=3\\)<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001<span style=\"color: #ff0000;\">\u659c\u8fba\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u307b\u304b\u306e\u8fba\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/span><\/p>\n<p>\u7269\u7406\u3067\u983b\u7e41\u306b\u4e09\u89d2\u6bd4\u304c\u5229\u7528\u3055\u308c\u308b\u7406\u7531\u3068\u3057\u3066\u3001\u89d2\u5ea6\u3092\u5229\u7528\u3057\u3066\u8fba\u306e\u9577\u3055\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002\u4f8b\u3048\u3070\u5efa\u7bc9\u8a2d\u8a08\u3092\u3059\u308b\u3068\u304d\u3001\u4e09\u89d2\u6bd4\u3092\u5229\u7528\u3059\u308c\u3070\u305f\u3066\u3084\u6a2a\u306e\u9577\u3055\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u307e\u305f\u8fba\u306e\u9577\u3055\u304c\u308f\u304b\u308c\u3070\u3001\u4e09\u89d2\u5f62\u306e\u9762\u7a4d\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e09\u89d2\u6bd4\u3092\u5b66\u3076\u7406\u7531\u3068\u3057\u3066\u306f\u3001\u5358\u7d14\u306b\u4fbf\u5229\u3060\u304b\u3089\u3067\u3059\u3002\u89d2\u5ea6\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u77e5\u308a\u305f\u3044\u8fba\u306e\u9577\u3055\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<h2>\u4e09\u89d2\u6bd4\u306e\u76f8\u4e92\u95a2\u4fc2\u3092\u8868\u3059\u516c\u5f0f<\/h2>\n<p>\u306a\u304asin\u03b8\u3084cos\u03b8\u3001tan\u03b8\u306b\u306f\u76f8\u4e92\u95a2\u4fc2\u3092\u8868\u3059\u516c\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002\u3088\u308a\u8a73\u3057\u304f\u3044\u3046\u3068\u3001\u4f8b\u3048\u3070sin\u03b8\u306e\u5024\u304c\u308f\u304b\u308b\u5834\u5408\u3001cos\u03b8\u3068tan\u03b8\u306e\u5024\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u4e09\u89d2\u6bd4\u306b\u306f\u4ee5\u4e0b\u306e\u516c\u5f0f\u304c\u3042\u308a\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>\u3053\u306e\u516c\u5f0f\u306e\u3046\u3061\u3001\\(sin^2\u03b8+cos^2\u03b8=1\\)\u3068\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u306f\u899a\u3048\u308b\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\u3002\u4e00\u65b9\u3001\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)\u306f\u899a\u3048\u3066\u3082\u3044\u3044\u3057\u3001\u899a\u3048\u306a\u304f\u3066\u3082\u3044\u3044\u3067\u3059\u3002\u516c\u5f0f\u3092\u7c21\u5358\u306b\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u304b\u3089\u3067\u3059\u3002<\/p>\n<h3>\\(sin^2\u03b8+cos^2\u03b8=1\\)\u306e\u516c\u5f0f<\/h3>\n<p>\u3053\u306e\u516c\u5f0f\u304c\u6210\u308a\u7acb\u3064\u7406\u7531\u3092\u7406\u89e3\u3059\u308b\u305f\u3081\u3001\u4ee5\u4e0b\u306e\u76f4\u89d2\u4e09\u89d2\u5f62\u3092\u8003\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/yjdf12.jpg\" alt=\"\" width=\"434\" height=\"264\" class=\"aligncenter size-full wp-image-4795\" \/><\/p>\n<p>\u4e09\u5e73\u65b9\u306e\u5b9a\u7406\uff08\u30d4\u30bf\u30b4\u30e9\u30b9\u306e\u5b9a\u7406\uff09\u3088\u308a\u3001\\(b^2+c^2=a^2\\)\u3067\u3059\u3002\u307e\u305f\u5148\u307b\u3069\u89e3\u8aac\u3057\u305f\u65b9\u6cd5\u306b\u3088\u3063\u3066\u3001sin\u03b8\u304c\u308f\u304b\u308c\u3070\\(b\\)\u306e\u9577\u3055\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(b=a\u00d7sin\u03b8\\)<\/li>\n<\/ul>\n<p>\u307e\u305fcos\u03b8\u3092\u5229\u7528\u3059\u308c\u3070\u3001\\(c\\)\u306e\u9577\u3055\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002\\(cos\u03b8=\\displaystyle\\frac{c}{a}\\)\u3067\u3042\u308b\u305f\u3081\u3001cos\u03b8\u3068\\(a\\)\u3092\u304b\u3051\u308b\u3068\\(c\\)\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<ul>\n<li>\\(c=a\u00d7cos\u03b8\\)<\/li>\n<\/ul>\n<p>\u305d\u3053\u3067\u3001\\(b=a\u00d7sin\u03b8\\)\u3068\\(c=a\u00d7cos\u03b8\\)\u3092\\(b^2+c^2=a^2\\)\u306b\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002\u3059\u308b\u3068\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\\(b^2+c^2=a^2\\)<\/p>\n<p>\u4ee3\u5165\u3059\u308b\u3068<\/p>\n<p>\\(a^2\u00d7sin^2\u03b8+a^2\u00d7cos^2\u03b8=a^2\\)<\/p>\n<p>\u4e21\u8fba\u3092\\(a^2\\)\u3067\u308f\u308b\u3002<\/p>\n<p>\\(sin^2\u03b8+cos^2\u03b8=1\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\\(sin^2\u03b8+cos^2\u03b8=1\\)\u306e\u516c\u5f0f\u3092\u8a3c\u660e\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u306e\u516c\u5f0f<\/h3>\n<p>\u306a\u304a\u3001\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u306b\u3064\u3044\u3066\u306f\u7c21\u5358\u306b\u7406\u89e3\u3067\u304d\u308b\u3068\u601d\u3044\u307e\u3059\u3002\u4ee5\u4e0b\u306e\u76f4\u89d2\u4e09\u89d2\u5f62\u306b\u3064\u3044\u3066\u3001\\(sin\u03b8=\\displaystyle\\frac{b}{a}\\)\u3067\u3059\u3002\u307e\u305f\u3001\\(cos\u03b8=\\displaystyle\\frac{c}{a}\\)\u3067\u3059\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/hatsudy.com\/jp\/wp-content\/uploads\/2022\/03\/yjdf12.jpg\" alt=\"\" width=\"434\" height=\"264\" class=\"aligncenter size-full wp-image-4795\" \/><\/p>\n<p>\u305d\u306e\u305f\u3081\u3001\\(\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u306f\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\/03\/yjdf13.jpg\" alt=\"\" width=\"600\" height=\"442\" class=\"aligncenter size-full wp-image-4797\" \/><\/p>\n<h3>\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)\u306e\u516c\u5f0f<\/h3>\n<p>\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)\u306e\u516c\u5f0f\u306b\u3064\u3044\u3066\u306f\u3001\\(sin^2\u03b8+cos^2\u03b8=1\\)\u3068\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305a\u3001\\(sin^2\u03b8+cos^2\u03b8=1\\)\u306e\u4e21\u8fba\u3092\\(cos^2\u03b8\\)\u3067\u308f\u308a\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(sin^2\u03b8+cos^2\u03b8=1\\)<\/p>\n<p>\\(\\displaystyle\\frac{sin^2\u03b8}{cos^2\u03b8}+1=\\displaystyle\\frac{1}{cos^2\u03b8}\\)<\/p>\n<p>\u5148\u306b\u8aac\u660e\u3057\u305f\u901a\u308a\u3001\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u3067\u3059\u3002\u3064\u307e\u308a\\(tan^2\u03b8=\\displaystyle\\frac{sin^2\u03b8}{cos^2\u03b8}\\)\u3068\u306a\u308a\u307e\u3059\u3002\u305d\u3053\u3067\u3001\u3053\u306e\u5f0f\u3092\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\\(\\color{red}{\\displaystyle\\frac{sin^2\u03b8}{cos^2\u03b8}}+1=\\displaystyle\\frac{1}{cos^2\u03b8}\\)<\/p>\n<p>\u4ee3\u5165\u3059\u308b\u3068<\/p>\n<p>\\(tan^2\u03b8+1=\\displaystyle\\frac{1}{cos^2\u03b8}\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)\u306e\u516c\u5f0f\u3092\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)\u306f\u7c21\u5358\u306a\u8a08\u7b97\u306b\u3088\u3063\u3066\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u524d\u8ff0\u306e\u901a\u308a\u3053\u306e\u516c\u5f0f\u3092\u899a\u3048\u3066\u3082\u3044\u3044\u3057\u3001\u899a\u3048\u306a\u304f\u3066\u3082\u3044\u3044\u3067\u3059\u3002<\/p>\n<h2>\u4e09\u89d2\u6bd4\u306e\u516c\u5f0f\u3092\u5229\u7528\u3057\u3001\u307b\u304b\u306e\u4e09\u89d2\u6bd4\u3092\u5f97\u308b<\/h2>\n<p>\u5148\u307b\u3069\u306e\u516c\u5f0f\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u4e00\u3064\u306e\u4e09\u89d2\u6bd4\u3092\u5f97\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u307b\u304b\u306e\u4e09\u89d2\u6bd4\u3092\u6c42\u3081\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>sin\u03b8\u307e\u305f\u306fcos\u03b8\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u3001\\(sin^2\u03b8+cos^2\u03b8=1\\)\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066sin\u03b8\uff08\u307e\u305f\u306fcos\u03b8\uff09\u306e\u5024\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067tan\u03b8\u306e\u5024\u3092\u5f97\u3089\u308c\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e00\u65b9\u3067tan\u03b8\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u306f\u3069\u3046\u3067\u3057\u3087\u3046\u304b\u3002\u3053\u306e\u5834\u5408\u3001\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066cos\u03b8\u306e\u5024\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u5f8c\u3001\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u3067sin\u03b8\u306e\u5024\u304c\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3>sin\u03b8\uff08\u307e\u305f\u306fcos\u03b8\uff09\u3092\u5229\u7528\u3057\u3001\u4e09\u89d2\u6bd4\u3092\u6c42\u3081\u308b<\/h3>\n<p>\u305d\u308c\u3067\u306f\u3001\u5b9f\u969b\u306b\u8a08\u7b97\u3057\u3066\u307f\u307e\u3057\u3087\u3046\u3002sin\u03b8\uff08\u307e\u305f\u306fcos\u03b8\uff09\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u307b\u304b\u306e\u4e09\u89d2\u6bd4\u3092\u51fa\u305b\u307e\u3059\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306f\u3069\u306e\u3088\u3046\u306a\u7b54\u3048\u306b\u306a\u308b\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\\(sin\u03b8=\\displaystyle\\frac{2}{3}\\)\u306e\u3068\u304d\u3001cos\u03b8\u3068tan\u03b8\u306e\u5024\u306f\uff1f\uff08\u305f\u3060\u3057\u3001sin\u03b8\u3001cos\u03b8\u3001tan\u03b8\u306f\u3059\u3079\u3066\u6b63\u306e\u5024\uff09<\/li>\n<\/ul>\n<p>\\(sin^2\u03b8+cos^2\u03b8=1\\)\u3088\u308a\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306bcos\u03b8\u306e\u5024\u3092\u51fa\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\\(\\left(\\displaystyle\\frac{2}{3}\\right)^2+cos^2\u03b8=1\\)<\/p>\n<p>\\(\\displaystyle\\frac{4}{9}+cos^2\u03b8=1\\)<\/p>\n<p>\\(cos^2\u03b8=1-\\displaystyle\\frac{4}{9}\\)<\/p>\n<p>\\(cos^2\u03b8=\\displaystyle\\frac{5}{9}\\)<\/p>\n<p>cos\u03b8&gt;0\u306e\u305f\u3081\u3001<\/p>\n<p>\\(cos\u03b8=\\displaystyle\\frac{\\sqrt{5}}{3}\\)<\/p>\n<p>\u3053\u3046\u3057\u3066\u3001\\(cos\u03b8=\\displaystyle\\frac{\\sqrt{5}}{3}\\)\u3068\u308f\u304b\u308a\u307e\u3059\u3002\u307e\u305f\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066tan\u03b8\u3092\u51fa\u3057\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)<\/p>\n<p>\\(tan\u03b8=sin\u03b8\u00f7cos\u03b8\\)<\/p>\n<p>\\(tan\u03b8=\\displaystyle\\frac{2}{3}\u00f7\\displaystyle\\frac{\\sqrt{5}}{3}\\)<\/p>\n<p>\\(tan\u03b8=\\displaystyle\\frac{2}{3}\u00d7\\displaystyle\\frac{3}{\\sqrt{5}}\\)<\/p>\n<p>\\(tan\u03b8=\\displaystyle\\frac{2}{\\sqrt{5}}\\)<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001sin\u03b8\u3092\u5229\u7528\u3057\u3066cos\u03b8\u3068tan\u03b8\u306e\u5024\u3092\u51fa\u305b\u307e\u3059\u3002<\/p>\n<h3>tan\u03b8\u3092\u5229\u7528\u3057\u3001sin\u03b8\u3068cos\u03b8\u3092\u5f97\u308b<\/h3>\n<p>\u4e00\u65b9\u3067tan\u03b8\u304c\u308f\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u3001\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)\u3092\u5229\u7528\u3057\u307e\u3057\u3087\u3046\u3002\u4f8b\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u7b54\u3048\u306f\u4f55\u3067\u3057\u3087\u3046\u304b\u3002<\/p>\n<ul>\n<li>\\(tan\u03b8=3\\)\u306e\u3068\u304d\u3001sin\u03b8\u3068cos\u03b8\u306e\u5024\u306f\uff1f\uff08\u305f\u3060\u3057\u3001sin\u03b8\u3001cos\u03b8\u3001tan\u03b8\u306f\u3059\u3079\u3066\u6b63\u306e\u5024\uff09<\/li>\n<\/ul>\n<p>\\(1+tan^2\u03b8=\\displaystyle\\frac{1}{cos^2\u03b8}\\)\u306b\\(tan\u03b8=3\\)\u3092\u4ee3\u5165\u3057\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\\(1+3^2=\\displaystyle\\frac{1}{cos^2\u03b8}\\)<\/p>\n<p>\\(10=\\displaystyle\\frac{1}{cos^2\u03b8}\\)<\/p>\n<p>\\(cos^2\u03b8=\\displaystyle\\frac{1}{10}\\)<\/p>\n<p>cos\u03b8&gt;0\u306e\u305f\u3081\u3001<\/p>\n<p>\\(cos\u03b8=\\displaystyle\\frac{1}{\\sqrt{10}}\\)<\/p>\n<p>\u6b21\u306b\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)\u3092\u5229\u7528\u3057\u3066sin\u03b8\u306e\u5024\u3092\u51fa\u3057\u307e\u3057\u3087\u3046\u3002\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\\(tan\u03b8=\\displaystyle\\frac{sin\u03b8}{cos\u03b8}\\)<\/p>\n<p>\\(tan\u03b8\u00d7cos\u03b8=sin\u03b8\\)<\/p>\n<p>\\(3\u00d7\\displaystyle\\frac{1}{\\sqrt{10}}=sin\u03b8\\)<\/p>\n<p>\\(sin\u03b8=\\displaystyle\\frac{3}{\\sqrt{10}}\\)<\/p>\n<p>\u3053\u306e\u3088\u3046\u306b\u3001\u516c\u5f0f\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3059\u3079\u3066\u306e\u4e09\u89d2\u6bd4\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/p>\n<h2>\u4e09\u89d2\u6bd4\u306e\u6982\u5ff5\u3092\u7406\u89e3\u3057\u3001sin\u03b8\u30fbcos\u03b8\u30fbtan\u03b8\u3092\u8a08\u7b97\u3059\u308b<\/h2>\n<p>\u56f3\u5f62\u3092\u5b66\u3076\u3068\u304d\u3001\u6700\u3082\u91cd\u8981\u306a\u6982\u5ff5\u306e\u4e00\u3064\u304c\u4e09\u89d2\u6bd4\u3067\u3059\u3002\u4e09\u89d2\u6bd4\u3092\u5229\u7528\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u3059\u3079\u3066\u306e\u8fba\u306e\u9577\u3055\u3068\u89d2\u5ea6\u304c\u308f\u304b\u308a\u307e\u3059\u3002\u4e09\u89d2\u6bd4\u306f\u975e\u5e38\u306b\u4fbf\u5229\u306a\u305f\u3081\u3001\u5efa\u7bc9\u3084\u6a5f\u68b0\u5de5\u5b66\u3001\u96fb\u6c17\u3001\u60c5\u5831\u6280\u8853\u306a\u3069\u3001\u591a\u304f\u306e\u7269\u7406\u5206\u91ce\u3067\u5229\u7528\u3055\u308c\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u4e09\u89d2\u6bd4\u3067\u6700\u3082\u57fa\u672c\u3068\u306a\u308b\u306e\u304csine\uff08\u6b63\u5f26\uff1asin\uff09\u30fbcosine\uff08\u4f59\u5f26\uff1acos\uff09\u30fbtangent\uff08\u6b63\u63a5\uff1atan\uff09\u3067\u3059\u3002sin\u3084cos\u3001tan\u304c\u4f55\u3092\u610f\u5473\u3059\u308b\u306e\u304b\u7406\u89e3\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<p>\u307e\u305f\u4e00\u3064\u306e\u89d2\u5ea6\u304c\u308f\u304b\u308c\u3070\u3001sin\u03b8\u3084cos\u03b8\u3001tan\u03b8\u306e\u5024\u3082\u308f\u304b\u308a\u307e\u3059\u304c\u3001\u5024\u3092\u899a\u3048\u308b\u5fc5\u8981\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u305f\u3060\u4f8b\u5916\u3068\u3057\u3066\u89d2\u5ea6\u304c30\u00b0\u308445\u00b0\u300160\u00b0\u306e\u5834\u5408\u3067\u306f\u3001\u3059\u3079\u3066\u306e\u4eba\u304csin\u03b8\u3084cos\u03b8\u3001tan\u03b8\u306e\u5024\u3092\u8a08\u7b97\u306b\u3088\u3063\u3066\u5f97\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u4e09\u89d2\u6bd4\u3092\u5229\u7528\u3059\u308c\u3070\u3001\u305d\u306e\u4ed6\u306e\u8fba\u306e\u9577\u3055\u3084\u89d2\u5ea6\u304c\u308f\u304b\u308a\u3001\u7d50\u679c\u3068\u3057\u3066\u9ad8\u3055\u3084\u9762\u7a4d\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002\u56f3\u5f62\u306e\u8a08\u7b97\u3084\u7269\u7406\u3067\u983b\u7e41\u306b\u4e09\u89d2\u6bd4\u304c\u5229\u7528\u3055\u308c\u308b\u305f\u3081\u3001\u4e09\u89d2\u6bd4\u306e\u57fa\u672c\u3068\u306a\u308b\u6982\u5ff5\u3092\u7406\u89e3\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u56f3\u5f62\u306e\u554f\u984c\u3067\u91cd\u8981\u306a\u6982\u5ff5\u304c\u4e09\u89d2\u6bd4\u3067\u3059\u3002\u4e09\u89d2\u6bd4\u3092\u7fd2\u3046\u3053\u3068\u306b\u3088\u3063\u3066\u3001\u8fba\u306e\u9577\u3055\u3092\u8a08\u7b97\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u89d2\u5ea6\u304c\u308f\u304b\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002 \u4e09\u89d2\u6bd4\u3092\u7406\u89e3\u3057\u3066\u3044\u306a\u3044\u5834\u5408\u3001\u6570\u5b66\u306e\u554f\u984c\u3092\u89e3\u3051\u306a\u3044\u3060\u3051\u3067\u306a\u304f\u3001\u7269\u7406\u306e\u554f\u984c\u3092\u89e3\u304f\u3053\u3068\u3082\u3067\u304d\u307e [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":4786,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"class_list":{"0":"post-4785","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-h-math"},"_links":{"self":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/4785","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/comments?post=4785"}],"version-history":[{"count":5,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/4785\/revisions"}],"predecessor-version":[{"id":8071,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/posts\/4785\/revisions\/8071"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/media\/4786"}],"wp:attachment":[{"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/media?parent=4785"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/categories?post=4785"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hatsudy.com\/jp\/wp-json\/wp\/v2\/tags?post=4785"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}