{"id":4917,"date":"2026-08-31T11:25:58","date_gmt":"2026-08-31T02:25:58","guid":{"rendered":"https:\/\/axis.onl\/reports\/?p=4917"},"modified":"2026-08-31T11:35:40","modified_gmt":"2026-08-31T02:35:40","slug":"trigonometric-ratio","status":"publish","type":"post","link":"https:\/\/axis.onl\/reports\/trigonometric-ratio\/","title":{"rendered":"\u4e09\u89d2\u6bd4\u3068\u306f\uff1fsin\u30fbcos\u30fbtan\u306e\u610f\u5473\u3068\u4f7f\u3044\u65b9\u306b\u3064\u3044\u3066\u5fb9\u5e95\u89e3\u8aac"},"content":{"rendered":"<p class=\"editor-normal\" dir=\"ltr\">\u4e09\u89d2\u6bd4\uff08sin\u30fbcos\u30fbtan\uff09\u306f\u3001\u89d2\u5ea6\u3068\u8fba\u306e\u9577\u3055\u306e\u95a2\u4fc2\u3092\u300c\u6bd4\u300d\u3067\u8868\u3059\u305f\u3081\u306e\u6570\u5b66\u306e\u9053\u5177\u3067\u3059\u3002\u89d2\u5ea6\u30681\u8fba\u306e\u9577\u3055\u304c\u5206\u304b\u308c\u3070\u5225\u306e\u8fba\u306e\u9577\u3055\u3092\u6c42\u3081\u305f\u308a\u3001\u8fba\u306e\u9577\u3055\u304b\u3089\u89d2\u5ea6\u3092\u6c42\u3081\u305f\u308a\u3067\u304d\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u76f4\u89d2\u4e09\u89d2\u5f62\u306b\u304a\u3051\u308b\u4e09\u89d2\u6bd4\u306e\u57fa\u672c\u304b\u3089\u3001sin\u30fbcos\u30fbtan\u306e\u610f\u5473\u300130\u00b0\u30fb45\u00b0\u30fb60\u00b0\u306e\u983b\u51fa\u5024\u3001\u8fba\u3084\u9ad8\u3055\u306e\u6c42\u3081\u65b9\u3001\u57fa\u672c\u516c\u5f0f\u3001\u5358\u4f4d\u5186\u306b\u3088\u308b\u62e1\u5f35\u3001\u6b63\u5f26\u5b9a\u7406\u30fb\u4f59\u5f26\u5b9a\u7406\u307e\u3067\u3092\u5206\u304b\u308a\u3084\u3059\u304f\u89e3\u8aac\u3057\u307e\u3059\u3002<\/p>\n<p><a href=\"https:\/\/axis.onl\/\"><img loading=\"lazy\" class=\"lazy lazy lazy alignnone size-full wp-image-1866 loaded\" src=\"https:\/\/axis.onl\/reports\/wp\/wp-content\/uploads\/2024\/05\/%E3%82%AA%E3%83%B3%E5%AE%B6.png\" alt=\"\" width=\"631\" height=\"241\" data-data-data-src=\"https:\/\/axis.onl\/reports\/wp\/wp-content\/uploads\/2024\/05\/\u30aa\u30f3\u5bb6.png\" data-was-processed=\"true\" \/><\/a><\/p>\n<div id=\"toc_container\" class=\"no_bullets\"><p class=\"toc_title\">\u76ee\u6b21<\/p><ul class=\"toc_list\"><li><a href=\"#i\"><span class=\"toc_number toc_depth_1\">1<\/span> \u4e09\u89d2\u6bd4\u3068\u306f\u4f55\u304b<\/a><ul><li><a href=\"#i-2\"><span class=\"toc_number toc_depth_2\">1.1<\/span> \u4e09\u89d2\u6bd4\u306e\u610f\u5473<\/a><\/li><li><a href=\"#i-3\"><span class=\"toc_number toc_depth_2\">1.2<\/span> \u4e09\u89d2\u6bd4\u306f\u4f55\u306b\u4f7f\u3046\u306e\u304b<\/a><\/li><li><a href=\"#sincostan\"><span class=\"toc_number toc_depth_2\">1.3<\/span> sin\u30fbcos\u30fbtan\u306e\u9055\u3044<\/a><\/li><\/ul><\/li><li><a href=\"#sincostan-2\"><span class=\"toc_number toc_depth_1\">2<\/span> sin\u30fbcos\u30fbtan\u306e\u5b9a\u7fa9\uff5c\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u306e\u4e09\u89d2\u6bd4<\/a><ul><li><a href=\"#sin\"><span class=\"toc_number toc_depth_2\">2.1<\/span> sin\uff08\u30b5\u30a4\u30f3\uff09<\/a><\/li><li><a href=\"#cos\"><span class=\"toc_number toc_depth_2\">2.2<\/span> cos\uff08\u30b3\u30b5\u30a4\u30f3\uff09<\/a><\/li><li><a href=\"#tan\"><span class=\"toc_number toc_depth_2\">2.3<\/span> tan\uff08\u30bf\u30f3\u30b8\u30a7\u30f3\u30c8\uff09<\/a><\/li><li><a href=\"#i-4\"><span class=\"toc_number toc_depth_2\">2.4<\/span> \u5bfe\u8fba\u30fb\u96a3\u8fba\u30fb\u659c\u8fba\u306e\u898b\u5206\u3051\u65b9<\/a><\/li><\/ul><\/li><li><a href=\"#sincostan-3\"><span class=\"toc_number toc_depth_1\">3<\/span> \u4e09\u89d2\u6bd4\u306e\u899a\u3048\u65b9\uff5csin\u30fbcos\u30fbtan\u306e\u898b\u5206\u3051\u65b9<\/a><\/li><li><a href=\"#304560\"><span class=\"toc_number toc_depth_1\">4<\/span> \u3088\u304f\u4f7f\u308f\u308c\u308b\u4e09\u89d2\u6bd4\uff5c30\u00b0\u30fb45\u00b0\u30fb60\u00b0<\/a><ul><li><a href=\"#30\"><span class=\"toc_number toc_depth_2\">4.1<\/span> 30\u00b0\u306e\u4e09\u89d2\u6bd4<\/a><\/li><li><a href=\"#45\"><span class=\"toc_number toc_depth_2\">4.2<\/span> 45\u00b0\u306e\u4e09\u89d2\u6bd4<\/a><\/li><li><a href=\"#60\"><span class=\"toc_number toc_depth_2\">4.3<\/span> 60\u00b0\u306e\u4e09\u89d2\u6bd4<\/a><\/li><li><a href=\"#304560-2\"><span class=\"toc_number toc_depth_2\">4.4<\/span> 30\u00b0\u30fb45\u00b0\u30fb60\u00b0\u306e\u4e09\u89d2\u6bd4\u4e00\u89a7<\/a><\/li><\/ul><\/li><li><a href=\"#i-5\"><span class=\"toc_number toc_depth_1\">5<\/span> \u4e09\u89d2\u6bd4\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\uff5c\u8fba\u306e\u9577\u3055\u3084\u9ad8\u3055\u3092\u6c42\u3081\u308b<\/a><ul><li><a href=\"#i-6\"><span class=\"toc_number toc_depth_2\">5.1<\/span> \u8fba\u306e\u9577\u3055\u3092\u6c42\u3081\u308b<\/a><\/li><li><a href=\"#i-7\"><span class=\"toc_number toc_depth_2\">5.2<\/span> \u9ad8\u3055\u3092\u6c42\u3081\u308b<\/a><\/li><li><a href=\"#i-8\"><span class=\"toc_number toc_depth_2\">5.3<\/span> \u5177\u4f53\u7684\u306a\u554f\u984c\u3067\u78ba\u8a8d<\/a><\/li><\/ul><\/li><li><a href=\"#i-9\"><span class=\"toc_number toc_depth_1\">6<\/span> \u4e09\u89d2\u6bd4\u306e\u76f8\u4e92\u95a2\u4fc2\u3068\u57fa\u672c\u516c\u5f0f<\/a><ul><li><a href=\"#sincos1\"><span class=\"toc_number toc_depth_2\">6.1<\/span> sin\u00b2\u03b8\uff0bcos\u00b2\u03b8\uff1d1<\/a><\/li><li><a href=\"#tansincos\"><span class=\"toc_number toc_depth_2\">6.2<\/span> tan\u03b8\uff1dsin\u03b8\uff0fcos\u03b8<\/a><\/li><li><a href=\"#i-10\"><span class=\"toc_number toc_depth_2\">6.3<\/span> \u305d\u306e\u4ed6\u306e\u95a2\u4fc2<\/a><\/li><\/ul><\/li><li><a href=\"#90\"><span class=\"toc_number toc_depth_1\">7<\/span> \u4e09\u89d2\u6bd4\u306e\u62e1\u5f35\uff5c90\u00b0\u3088\u308a\u5927\u304d\u3044\u89d2\u3068\u5358\u4f4d\u5186<\/a><ul><li><a href=\"#i-11\"><span class=\"toc_number toc_depth_2\">7.1<\/span> \u5358\u4f4d\u5186\u3068\u306f<\/a><\/li><li><a href=\"#90sincostan\"><span class=\"toc_number toc_depth_2\">7.2<\/span> 90\u00b0\u3088\u308a\u5927\u304d\u3044\u89d2\u306esin\u30fbcos\u30fbtan<\/a><\/li><li><a href=\"#180270360\"><span class=\"toc_number toc_depth_2\">7.3<\/span> 180\u00b0\u30fb270\u00b0\u30fb360\u00b0\u3068\u306e\u95a2\u4fc2<\/a><\/li><\/ul><\/li><li><a href=\"#i-12\"><span class=\"toc_number toc_depth_1\">8<\/span> \u4e09\u89d2\u6bd4\u306e\u5fdc\u7528\uff5c\u6b63\u5f26\u5b9a\u7406\u30fb\u4f59\u5f26\u5b9a\u7406\u30fb\u4e09\u89d2\u5f62\u306e\u9762\u7a4d<\/a><ul><li><a href=\"#i-13\"><span class=\"toc_number toc_depth_2\">8.1<\/span> \u6b63\u5f26\u5b9a\u7406<\/a><\/li><li><a href=\"#i-14\"><span class=\"toc_number toc_depth_2\">8.2<\/span> \u4f59\u5f26\u5b9a\u7406<\/a><\/li><li><a href=\"#i-15\"><span class=\"toc_number toc_depth_2\">8.3<\/span> \u4e09\u89d2\u5f62\u306e\u9762\u7a4d<\/a><\/li><\/ul><\/li><li><a href=\"#i-16\"><span class=\"toc_number toc_depth_1\">9<\/span> \u307e\u3068\u3081<\/a><\/li><\/ul><\/div>\n<h2 class=\"editor-h2\"><span id=\"i\">\u4e09\u89d2\u6bd4\u3068\u306f\u4f55\u304b<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u4e09\u89d2\u6bd4\u3068\u306f\u3001\u89d2\u5ea6\u306b\u5bfe\u3059\u308b\u8fba\u306e\u9577\u3055\u306e\u6bd4\u3092\u8868\u3059\u3082\u306e\u3067\u3001sin\u30fbcos\u30fbtan\u306e3\u7a2e\u985e\u304c\u3042\u308a\u307e\u3059\u3002<\/strong><\/span>\u9ad8\u6821\u6570\u5b66\u3067\u306f\u3001\u76f4\u89d2\u4e09\u89d2\u5f62\u3092\u7528\u3044\u3066\u57fa\u672c\u7684\u306a\u4e09\u89d2\u6bd4\u3092\u5b66\u3073\u3001\u5358\u4f4d\u5186\u3092\u7528\u3044\u3066\u4e00\u822c\u306e\u89d2\u3078\u62e1\u5f35\u3057\u3066\u3044\u304d\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3068\u3048\u3070\u3001\u89d2\u5ea6\u03b8\u304c\u6c7a\u307e\u308b\u3068\u3001\u305d\u306e\u89d2\u5ea6\u3092\u3082\u3064\u76f4\u89d2\u4e09\u89d2\u5f62\u306f\u5927\u304d\u3055\u304c\u9055\u3063\u3066\u3082\u4e92\u3044\u306b\u76f8\u4f3c\u306b\u306a\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u5bfe\u5fdc\u3059\u308b\u8fba\u306e\u9577\u3055\u306e\u6bd4\u306f\u5e38\u306b\u4e00\u5b9a\u3067\u3059\u3002\u3053\u306e\u6027\u8cea\u3092\u5229\u7528\u3057\u3066\u3001\u89d2\u5ea6\u3068\u8fba\u306e\u95a2\u4fc2\u3092\u6570\u5024\u3068\u3057\u3066\u8868\u3057\u305f\u3082\u306e\u304c\u4e09\u89d2\u6bd4\u3067\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e09\u89d2\u6bd4\u3067\u91cd\u8981\u306a\u306e\u306f\u3001\u8fba\u306e\u300c\u9577\u3055\u305d\u306e\u3082\u306e\u300d\u3067\u306f\u306a\u304f\u300c\u8fba\u3069\u3046\u3057\u306e\u6bd4\u300d\u3092\u6271\u3046\u3053\u3068\u3067\u3059\u3002\u4e09\u89d2\u5f62\u3092\u5927\u304d\u304f\u3057\u305f\u308a\u5c0f\u3055\u304f\u3057\u305f\u308a\u3057\u3066\u3082\u6bd4\u306f\u5909\u308f\u3089\u306a\u3044\u305f\u3081\u3001\u4e09\u89d2\u6bd4\u306f\u56f3\u5f62\u306e\u5927\u304d\u3055\u306b\u5de6\u53f3\u3055\u308c\u305a\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-4962\" src=\"https:\/\/axis.onl\/reports\/wp\/wp-content\/uploads\/2026\/08\/\u76f8\u4f3c.jpg\" alt=\"\" width=\"1024\" height=\"614\" \/><\/p>\n<h3 class=\"editor-h3\"><span id=\"i-2\">\u4e09\u89d2\u6bd4\u306e\u610f\u5473<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u4e09\u89d2\u6bd4\u3067\u306f\u3001\u57fa\u6e96\u3068\u306a\u308b\u89d2\u3092\u03b8\u3068\u3059\u308b\u3068\u3001sin\u03b8\u3001cos\u03b8\u3001tan\u03b8\u3068\u3044\u30463\u3064\u306e\u5024\u3092\u8003\u3048\u307e\u3059\u3002<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">sin\u03b8\u306f\u300c\u5bfe\u8fba\u3068\u659c\u8fba\u306e\u6bd4\u300d\u3001cos\u03b8\u306f\u300c\u96a3\u8fba\u3068\u659c\u8fba\u306e\u6bd4\u300d\u3001tan\u03b8\u306f\u300c\u5bfe\u8fba\u3068\u96a3\u8fba\u306e\u6bd4\u300d\u3067\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3064\u307e\u308a\u3001\u540c\u3058\u89d2\u03b8\u3067\u3082\u3001\u3069\u306e\u8fba\u3092\u7d44\u307f\u5408\u308f\u305b\u308b\u304b\u306b\u3088\u3063\u3066\u5024\u304c\u5909\u308f\u308a\u307e\u3059\u3002<span class=\"keiko_green\"><strong>\u4e09\u89d2\u6bd4\u3092\u7406\u89e3\u3059\u308b\u306b\u306f\u3001\u307e\u305a\u300c\u89d2\u5ea6\u306b\u5bfe\u3057\u3066\u3069\u306e\u8fba\u3092\u898b\u308b\u306e\u304b\u300d\u3092\u6b63\u3057\u304f\u5224\u65ad\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/strong><\/span><\/p>\n<h3 class=\"editor-h3\"><span id=\"i-3\">\u4e09\u89d2\u6bd4\u306f\u4f55\u306b\u4f7f\u3046\u306e\u304b<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u4e09\u89d2\u6bd4\u306f\u3001\u76f4\u63a5\u6e2c\u308b\u3053\u3068\u304c\u96e3\u3057\u3044\u9577\u3055\u3084\u9ad8\u3055\u3092\u3001\u89d2\u5ea6\u3068\u5225\u306e\u9577\u3055\u304b\u3089\u6c42\u3081\u308b\u3068\u304d\u306b\u4f7f\u308f\u308c\u307e\u3059\u3002<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3068\u3048\u3070\u3001<span class=\"keiko_blue\"><strong>\u5efa\u7269\u306e\u9ad8\u3055\u3092\u6e2c\u308a\u305f\u3044\u5834\u5408\u3001\u5efa\u7269\u307e\u3067\u306e\u8ddd\u96e2\u3068\u898b\u4e0a\u3052\u308b\u89d2\u5ea6\u304c\u5206\u304b\u308c\u3070\u3001tan\u3092\u4f7f\u3063\u3066\u9ad8\u3055\u3092\u8a08\u7b97\u3067\u304d\u307e\u3059\u3002<\/strong><\/span>\u307e\u305f\u3001\u659c\u9762\u306e\u89d2\u5ea6\u3068\u9577\u3055\u304b\u3089\u6c34\u5e73\u8ddd\u96e2\u3084\u9ad8\u3055\u3092\u6c42\u3081\u308b\u3053\u3068\u3082\u3067\u304d\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u6570\u5b66\u306e\u554f\u984c\u3060\u3051\u3067\u306a\u304f\u3001\u6e2c\u91cf\u3001\u5efa\u7bc9\u3001\u7269\u7406\u306a\u3069\u3067\u3082\u5229\u7528\u3055\u308c\u3066\u304a\u308a\u3001\u89d2\u5ea6\u3068\u9577\u3055\u3092\u7d50\u3073\u3064\u3051\u308b\u91cd\u8981\u306a\u8003\u3048\u65b9\u3067\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"sincostan\">sin\u30fbcos\u30fbtan\u306e\u9055\u3044<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">sin\u30fbcos\u30fbtan\u306e\u9055\u3044\u306f\u3001\u3069\u306e2\u8fba\u306e\u6bd4\u3092\u8868\u3057\u3066\u3044\u308b\u304b\u3067\u3059\u3002<\/p>\n<div class=\"sng-box box1\">\n<p><b><strong class=\"editor-textBold\">\u30fbsin\u03b8\uff1d\u5bfe\u8fba\uff0f\u659c\u8fba<\/strong><\/b><\/p>\n<p><b><strong class=\"editor-textBold\">\u30fbcos\u03b8\uff1d\u96a3\u8fba\uff0f\u659c\u8fba<\/strong><\/b><\/p>\n<p><b><strong class=\"editor-textBold\">\u30fbtan\u03b8\uff1d\u5bfe\u8fba\uff0f\u96a3\u8fba<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">sin\u306f\u57fa\u6e96\u89d2\u306b\u5bfe\u3059\u308b\u300c\u5bfe\u8fba\u306e\u5272\u5408\u300d\u3001cos\u306f\u300c\u96a3\u8fba\u306e\u5272\u5408\u300d\u3068\u3057\u3066\u8003\u3048\u3001\u5177\u4f53\u7684\u306a\u56f3\u3067\u306f\u7e26\u30fb\u6a2a\u65b9\u5411\u306e\u6210\u5206\u3068\u3057\u3066\u6349\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<h2 class=\"editor-h2\"><span id=\"sincostan-2\">sin\u30fbcos\u30fbtan\u306e\u5b9a\u7fa9\uff5c\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u306e\u4e09\u89d2\u6bd4<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u4e09\u89d2\u6bd4\u306e\u57fa\u672c\u306f\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u3059\u3002\u307e\u305a\u76f4\u89d2\u3092\u78ba\u8a8d\u3057\u3001\u57fa\u6e96\u3068\u306a\u308b\u89d2\u03b8\u3092\u6c7a\u3081\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u300c\u5bfe\u8fba\u30fb\u96a3\u8fba\u30fb\u659c\u8fba\u300d\u3092\u898b\u5206\u3051\u307e\u3059\u3002<\/strong><\/span><\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">\u659c\u8fba\uff1a<\/strong><\/b>\u76f4\u89d2\u306e\u5411\u304b\u3044\u5074\u306b\u3042\u308b\u8fba\u3067\u3001\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u4e2d\u3067\u6700\u3082\u9577\u3044\u8fba<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">\u5bfe\u8fba\uff1a<\/strong><\/b>\u57fa\u6e96\u3068\u306a\u308b\u89d2\u03b8\u306e\u5411\u304b\u3044\u5074\u306b\u3042\u308b\u8fba<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">\u96a3\u8fba\uff1a<\/strong><\/b>\u89d2\u03b8\u306b\u63a5\u3057\u3066\u3044\u308b\u8fba\u306e\u3046\u3061\u3001\u659c\u8fba\u3067\u306f\u306a\u3044\u8fba<\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u306e3\u3064\u3092\u6b63\u3057\u304f\u898b\u5206\u3051\u3089\u308c\u308c\u3070\u3001\u4e09\u89d2\u6bd4\u306e\u5f0f\u306f\u7c21\u5358\u306b\u4f5c\u308c\u307e\u3059\u3002<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-4961\" src=\"https:\/\/axis.onl\/reports\/wp\/wp-content\/uploads\/2026\/08\/\u4e09\u89d2\u6bd4\u30ea\u30a2\u30eb.jpg\" alt=\"\" width=\"1024\" height=\"485\" \/><\/p>\n<h3 class=\"editor-h3\"><span id=\"sin\">sin\uff08\u30b5\u30a4\u30f3\uff09<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>sin\u03b8\u306f\u3001\u5bfe\u8fba\u3068\u659c\u8fba\u306e\u6bd4\u3067\u3059\u3002<\/strong><\/span><\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">sin\u03b8\uff1d\u5bfe\u8fba\uff0f\u659c\u8fba<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3068\u3048\u3070\u3001\u5bfe\u8fba\u304c3\u3001\u659c\u8fba\u304c5\u306e\u3068\u304d\u306f\u3001sin\u03b8\uff1d3\/5\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_blue\"><strong>sin\u306f\u3001\u659c\u8fba\u306b\u5bfe\u3057\u3066\u9ad8\u3055\u304c\u3069\u308c\u304f\u3089\u3044\u3042\u308b\u304b\u3092\u8868\u3059\u6bd4\u3068\u8003\u3048\u308b\u3068\u5206\u304b\u308a\u3084\u3059\u3044\u3067\u3057\u3087\u3046\u3002<\/strong><\/span><\/p>\n<h3 class=\"editor-h3\"><span id=\"cos\">cos\uff08\u30b3\u30b5\u30a4\u30f3\uff09<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>cos\u03b8\u306f\u3001\u96a3\u8fba\u3068\u659c\u8fba\u306e\u6bd4\u3067\u3059\u3002<\/strong><\/span><\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">cos\u03b8\uff1d\u96a3\u8fba\uff0f\u659c\u8fba<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">\u96a3\u8fba\u304c4\u3001\u659c\u8fba\u304c5\u306a\u3089\u3001cos\u03b8\uff1d4\/5\u3067\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_blue\"><strong>sin\u3068cos\u306f\u3069\u3061\u3089\u3082\u5206\u6bcd\u304c\u659c\u8fba\u3067\u3042\u308b\u305f\u3081\u3001\u300csin\u306f\u5bfe\u8fba\u3001cos\u306f\u96a3\u8fba\u300d\u3068\u6574\u7406\u3059\u308b\u3068\u899a\u3048\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/strong><\/span><\/p>\n<h3 class=\"editor-h3\"><span id=\"tan\">tan\uff08\u30bf\u30f3\u30b8\u30a7\u30f3\u30c8\uff09<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>tan\u03b8\u306f\u3001\u5bfe\u8fba\u3068\u96a3\u8fba\u306e\u6bd4\u3067\u3059\u3002<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">tan\u03b8\uff1d\u5bfe\u8fba\uff0f\u96a3\u8fba<\/strong><\/b><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3068\u3048\u3070\u3001\u5bfe\u8fba\u304c3\u3001\u96a3\u8fba\u304c4\u306a\u3089\u3001tan\u03b8\uff1d3\/4\u3067\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_blue\"><strong>tan\u306f\u300c\u9ad8\u3055\uff0f\u6c34\u5e73\u8ddd\u96e2\u300d\u3068\u8003\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u305f\u3081\u3001\u5742\u9053\u3084\u5efa\u7269\u306e\u9ad8\u3055\u306a\u3069\u3001\u50be\u304d\u306b\u95a2\u3059\u308b\u554f\u984c\u3067\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/strong><\/span><\/p>\n<h3 class=\"editor-h3\"><span id=\"i-4\">\u5bfe\u8fba\u30fb\u96a3\u8fba\u30fb\u659c\u8fba\u306e\u898b\u5206\u3051\u65b9<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u307e\u305a\u76f4\u89d2\u3092\u63a2\u3057\u3001\u305d\u306e\u5411\u304b\u3044\u5074\u3092\u659c\u8fba\u3068\u3057\u307e\u3059\u3002\u6b21\u306b\u57fa\u6e96\u3068\u306a\u308b\u89d2\u03b8\u3092\u78ba\u8a8d\u3057\u3001\u03b8\u306e\u5411\u304b\u3044\u5074\u304c\u5bfe\u8fba\u3001\u03b8\u306b\u63a5\u3057\u3066\u3044\u308b\u659c\u8fba\u4ee5\u5916\u306e\u8fba\u304c\u96a3\u8fba\u3067\u3059\u3002<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u6ce8\u610f\u3057\u305f\u3044\u306e\u306f\u3001<span class=\"keiko_red\"><b><strong class=\"editor-textBold\">\u57fa\u6e96\u3068\u306a\u308b\u89d2\u304c\u5909\u308f\u308b\u3068\u3001\u5bfe\u8fba\u3068\u96a3\u8fba\u3082\u5909\u308f\u308b<\/strong><\/b><\/span>\u3053\u3068\u3067\u3059\u3002\u554f\u984c\u3092\u89e3\u304f\u3068\u304d\u306f\u3001\u6700\u521d\u306b\u03b8\u306e\u4f4d\u7f6e\u3092\u78ba\u8a8d\u3057\u3066\u304b\u3089\u8fba\u306e\u540d\u524d\u3092\u6c7a\u3081\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2 class=\"editor-h2\"><span id=\"sincostan-3\">\u4e09\u89d2\u6bd4\u306e\u899a\u3048\u65b9\uff5csin\u30fbcos\u30fbtan\u306e\u898b\u5206\u3051\u65b9<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e09\u89d2\u6bd4\u3092\u899a\u3048\u308b\u3068\u304d\u306f\u3001\u5f0f\u3060\u3051\u3092\u4e38\u6697\u8a18\u3059\u308b\u3088\u308a\u3001\u8fba\u306e\u4f4d\u7f6e\u3068\u30bb\u30c3\u30c8\u3067\u899a\u3048\u308b\u306e\u304c\u304a\u3059\u3059\u3081\u3067\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u307e\u305a\u3001\u4ee5\u4e0b\u306e3\u3064\u3092\u57fa\u672c\u3068\u3057\u3066\u899a\u3048\u307e\u3057\u3087\u3046\u3002<\/p>\n<p><span class=\"keiko_green\"><b><strong class=\"editor-textBold\">sin\u03b8\uff1d\u5bfe\u8fba\uff0f\u659c\u8fba\u3001<\/strong><\/b><b><strong class=\"editor-textBold\">cos\u03b8\uff1d\u96a3\u8fba\uff0f\u659c\u8fba\u3001<\/strong><\/b><b><strong class=\"editor-textBold\">tan\u03b8\uff1d\u5bfe\u8fba\uff0f\u96a3\u8fba<\/strong><\/b><\/span><\/p>\n<p><img loading=\"lazy\" class=\"alignnone size-full wp-image-4963\" src=\"https:\/\/axis.onl\/reports\/wp\/wp-content\/uploads\/2026\/08\/\u4e09\u89d2\u6bd4\u306e\u5b9a\u7fa9.jpg\" alt=\"\" width=\"1024\" height=\"512\" \/><\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u300csin\u3068cos\u306f\u659c\u8fba\u3092\u4f7f\u3046\u300d\u300ctan\u306f\u659c\u8fba\u3092\u4f7f\u308f\u306a\u3044\u300d<\/strong><\/span>\u3068\u6574\u7406\u3059\u308b\u306e\u3082\u52b9\u679c\u7684\u3067\u3059\u3002\u307e\u305f\u3001<span class=\"keiko_blue\"><strong>sin\u306f\u7e26\u65b9\u5411\u3001cos\u306f\u6a2a\u65b9\u5411\u3001tan\u306f\u50be\u304d\u3068\u3044\u3046\u610f\u5473\u3092\u610f\u8b58\u3059\u308b\u3068\u3001\u5f0f\u3092\u601d\u3044\u51fa\u3057\u3084\u3059\u304f\u306a\u308a\u307e\u3059\u3002<\/strong><\/span><\/p>\n<h2 class=\"editor-h2\"><span id=\"304560\">\u3088\u304f\u4f7f\u308f\u308c\u308b\u4e09\u89d2\u6bd4\uff5c30\u00b0\u30fb45\u00b0\u30fb60\u00b0<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\">30\u00b0\u30fb45\u00b0\u30fb60\u00b0\u306f\u3001\u4e09\u89d2\u6bd4\u306e\u554f\u984c\u3067\u7279\u306b\u3088\u304f\u4f7f\u308f\u308c\u308b\u89d2\u5ea6\u3067\u3059\u3002\u305d\u308c\u305e\u308c\u306e\u5024\u3092\u899a\u3048\u3066\u304a\u304f\u3068\u3001\u8a08\u7b97\u3092\u30b9\u30e0\u30fc\u30ba\u306b\u9032\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3060\u3057\u3001\u6570\u5024\u3060\u3051\u3092\u6697\u8a18\u3059\u308b\u306e\u3067\u306f\u306a\u304f\u3001\u7279\u6b8a\u306a\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u8fba\u306e\u6bd4\u304b\u3089\u5c0e\u3051\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304f\u3068\u3001\u5fd8\u308c\u305f\u3068\u304d\u306b\u3082\u614c\u3066\u306a\u3044\u3067\u3059\u307f\u307e\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"30\">30\u00b0\u306e\u4e09\u89d2\u6bd4<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>30\u00b0\u30fb60\u00b0\u30fb90\u00b0<\/strong><\/span>\u306e\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u306f\u3001\u8fba\u306e\u6bd4\u304c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">1\uff1a\u221a3\uff1a2<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>30\u00b0\u3092\u57fa\u6e96<\/strong><\/span>\u306b\u3059\u308b\u3068\u3001\u5bfe\u8fba\u304c1\u3001\u96a3\u8fba\u304c\u221a3\u3001\u659c\u8fba\u304c2\u306a\u306e\u3067\u3001<\/p>\n<ul class=\"editor-ul\">\n<li class=\"editor-listItem\" value=\"1\">\n<div class=\"sng-box box1\">sin30\u00b0\uff1d1\/2<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"2\">\n<div class=\"sng-box box1\">cos30\u00b0\uff1d\u221a3\/2<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"3\">\n<div class=\"sng-box box1\">tan30\u00b0\uff1d1\/\u221a3<\/div>\n<\/li>\n<\/ul>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"45\">45\u00b0\u306e\u4e09\u89d2\u6bd4<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>45\u00b0\u30fb45\u00b0\u30fb90\u00b0<\/strong><\/span>\u306e\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u306f\u3001\u8fba\u306e\u6bd4\u304c\u4ee5\u4e0b\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">1\uff1a1\uff1a\u221a2<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">\u3057\u305f\u304c\u3063\u3066\u3001<span class=\"keiko_green\"><strong>45\u00b0\u3092\u57fa\u6e96<\/strong><\/span>\u306b\u3059\u308b\u3068\u3001<\/p>\n<ul class=\"editor-ul\">\n<li class=\"editor-listItem\" value=\"1\">\n<div class=\"sng-box box1\">sin45\u00b0\uff1d1\/\u221a2<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"2\">\n<div class=\"sng-box box1\">cos45\u00b0\uff1d1\/\u221a2<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"3\">\n<div class=\"sng-box box1\">tan45\u00b0\uff1d1<\/div>\n<\/li>\n<\/ul>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>45\u00b0\u3067\u306fsin\u3068cos\u304c\u540c\u3058\u5024\u306b\u306a\u308b\u3053\u3068\u304c\u5927\u304d\u306a\u7279\u5fb4\u3067\u3059\u3002<\/strong><\/span><\/p>\n<h3 class=\"editor-h3\"><span id=\"60\">60\u00b0\u306e\u4e09\u89d2\u6bd4<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">60\u00b0\u306f<span class=\"keiko_green\"><strong>30\u00b0\u30fb60\u00b0\u30fb90\u00b0<\/strong><\/span>\u306e\u4e09\u89d2\u5f62\u3092\u4f7f\u3063\u3066\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>60\u00b0\u3092\u57fa\u6e96<\/strong><\/span>\u306b\u3059\u308b\u3068\u3001\u5bfe\u8fba\u304c\u221a3\u3001\u96a3\u8fba\u304c1\u3001\u659c\u8fba\u304c2\u306a\u306e\u3067\u3001<\/p>\n<ul class=\"editor-ul\">\n<li class=\"editor-listItem\" value=\"1\">\n<div class=\"sng-box box1\">sin60\u00b0\uff1d\u221a3\/2<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"2\">\n<div class=\"sng-box box1\">cos60\u00b0\uff1d1\/2<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"3\">\n<div class=\"sng-box box1\">tan60\u00b0\uff1d\u221a3<\/div>\n<\/li>\n<\/ul>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_red\"><strong>30\u00b0\u306860\u00b0\u3067\u306f\u3001sin\u3068cos\u306e\u5024\u304c\u5165\u308c\u66ff\u308f\u3063\u3066\u3044\u308b<\/strong><\/span>\u3053\u3068\u306b\u3082\u6ce8\u76ee\u3057\u307e\u3057\u3087\u3046\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"304560-2\">30\u00b0\u30fb45\u00b0\u30fb60\u00b0\u306e\u4e09\u89d2\u6bd4\u4e00\u89a7<\/span><\/h3>\n<table>\n<tbody>\n<tr>\n<td width=\"96\"><strong>\u89d2\u5ea6<\/strong><\/td>\n<td width=\"120\"><strong>sin<\/strong><\/td>\n<td width=\"120\"><strong>cos<\/strong><\/td>\n<td width=\"120\"><strong>tan<\/strong><\/td>\n<\/tr>\n<tr>\n<td width=\"96\">30\u00b0<\/td>\n<td width=\"120\">1\/2<\/td>\n<td width=\"120\">\u221a3\/2<\/td>\n<td width=\"120\">1\/\u221a3<\/td>\n<\/tr>\n<tr>\n<td width=\"96\">45\u00b0<\/td>\n<td width=\"120\">1\/\u221a2<\/td>\n<td width=\"120\">1\/\u221a2<\/td>\n<td width=\"120\">1<\/td>\n<\/tr>\n<tr>\n<td width=\"96\">60\u00b0<\/td>\n<td width=\"120\">\u221a3\/2<\/td>\n<td width=\"120\">1\/2<\/td>\n<td width=\"120\">\u221a3<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u306e\u8868\u306f\u983b\u51fa\u306a\u306e\u3067\u3001\u3057\u3063\u304b\u308a\u899a\u3048\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n<h2 class=\"editor-h2\"><span id=\"i-5\">\u4e09\u89d2\u6bd4\u306e\u57fa\u672c\u7684\u306a\u4f7f\u3044\u65b9\uff5c\u8fba\u306e\u9577\u3055\u3084\u9ad8\u3055\u3092\u6c42\u3081\u308b<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e09\u89d2\u6bd4\u3092\u4f7f\u3063\u305f\u554f\u984c\u3067\u306f\u3001<span class=\"keiko_green\"><strong>\u300c\u56f3\u3092\u78ba\u8a8d\u3059\u308b\u2192\u5bfe\u8fba\u30fb\u96a3\u8fba\u30fb\u659c\u8fba\u3092\u6c7a\u3081\u308b\u2192\u4f7f\u3046\u4e09\u89d2\u6bd4\u3092\u9078\u3076\u2192\u5f0f\u3092\u7acb\u3066\u308b\u300d<\/strong><\/span>\u3068\u3044\u3046\u6d41\u308c\u304c\u57fa\u672c\u3067\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"i-6\">\u8fba\u306e\u9577\u3055\u3092\u6c42\u3081\u308b<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3068\u3048\u3070\u3001\u89d2\u03b8\u3068\u659c\u8fba\u306e\u9577\u3055\u304c\u5206\u304b\u3063\u3066\u3044\u3066\u3001\u5bfe\u8fba\u3092\u6c42\u3081\u308b\u5834\u5408\u306fsin\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>sin\u03b8\uff1d\u5bfe\u8fba\uff0f\u659c\u8fba<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u5f0f\u3092\u7acb\u3066\u3001\u5206\u304b\u3063\u3066\u3044\u308b\u5024\u3092\u4ee3\u5165\u3057\u3066\u672a\u77e5\u306e\u8fba\u3092\u6c42\u3081\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e00\u65b9\u3001\u89d2\u03b8\u3068\u96a3\u8fba\u304b\u3089\u5bfe\u8fba\u3092\u6c42\u3081\u308b\u306a\u3089tan\u3092\u4f7f\u3044\u307e\u3059\u3002\u3053\u306e\u3088\u3046\u306b\u3001<span class=\"keiko_green\"><b><strong class=\"editor-textBold\">\u6c42\u3081\u305f\u3044\u8fba\u3068\u5206\u304b\u3063\u3066\u3044\u308b\u8fba\u306e\u7d44\u307f\u5408\u308f\u305b\u304b\u3089\u3001sin\u30fbcos\u30fbtan\u3092\u9078\u3076<\/strong><\/b><\/span>\u3053\u3068\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"i-7\">\u9ad8\u3055\u3092\u6c42\u3081\u308b<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u9ad8\u3055\u3092\u6c42\u3081\u308b\u554f\u984c\u3067\u306f\u3001tan\u304c\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u6c34\u5e73\u8ddd\u96e2\u3092x\u3001\u9ad8\u3055\u3092h\u3001\u89d2\u5ea6\u3092\u03b8\u3068\u3059\u308b\u3068\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><b><strong class=\"editor-textBold\">tan\u03b8\uff1dh\/x<\/strong><\/b><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308b\u305f\u3081\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><b><strong class=\"editor-textBold\">h\uff1dx tan\u03b8<\/strong><\/b><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u3057\u3066\u9ad8\u3055\u3092\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3060\u3057\u3001<span class=\"keiko_red\"><strong>\u89b3\u6e2c\u3059\u308b\u4eba\u306e\u76ee\u306e\u9ad8\u3055\u306a\u3069\u304c\u8a2d\u5b9a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u3001\u305d\u306e\u9ad8\u3055\u3082\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u6587\u7ae0\u984c\u3067\u306f\u3001\u307e\u305a\u72b6\u6cc1\u3092\u56f3\u306b\u3057\u3066\u6574\u7406\u3059\u308b\u3053\u3068\u304c\u5927\u5207\u3067\u3059\u3002<\/strong><\/span><\/p>\n<h3 class=\"editor-h3\"><span id=\"i-8\">\u5177\u4f53\u7684\u306a\u554f\u984c\u3067\u78ba\u8a8d<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u4e09\u89d2\u6bd4\u306e\u554f\u984c\u3092\u89e3\u304f\u3068\u304d\u306f\u3001\u6700\u521d\u306b\u76f4\u89d2\u4e09\u89d2\u5f62\u3092\u30a4\u30e1\u30fc\u30b8\u307e\u305f\u306f\u56f3\u793a\u3057\u307e\u3059\u3002<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u6b21\u306b\u57fa\u6e96\u89d2\u03b8\u3092\u78ba\u8a8d\u3057\u3001\u5bfe\u8fba\u30fb\u96a3\u8fba\u30fb\u659c\u8fba\u3092\u6c7a\u3081\u307e\u3059\u3002\u305d\u306e\u3046\u3048\u3067\u3001\u6c42\u3081\u305f\u3044\u8fba\u3068\u5206\u304b\u3063\u3066\u3044\u308b\u8fba\u306e\u4e21\u65b9\u3092\u542b\u3080\u4e09\u89d2\u6bd4\u3092\u9078\u3073\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u6700\u5f8c\u306b\u5f0f\u3092\u7acb\u3066\u3066\u8a08\u7b97\u3057\u3001\u5358\u4f4d\u3084\u7b54\u3048\u306e\u5927\u304d\u3055\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u306e\u624b\u9806\u3092\u7e70\u308a\u8fd4\u3059\u3053\u3068\u3067\u3001\u4e09\u89d2\u6bd4\u306e\u554f\u984c\u3092\u5b89\u5b9a\u3057\u3066\u89e3\u3051\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h2 class=\"editor-h2\"><span id=\"i-9\">\u4e09\u89d2\u6bd4\u306e\u76f8\u4e92\u95a2\u4fc2\u3068\u57fa\u672c\u516c\u5f0f<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e09\u89d2\u6bd4\u306b\u306f\u3001sin\u30fbcos\u30fbtan\u3092\u76f8\u4e92\u306b\u7d50\u3073\u3064\u3051\u308b\u516c\u5f0f\u304c\u3042\u308a\u307e\u3059\u3002\u7279\u306b\u91cd\u8981\u306a\u306e\u304c\u3001\u4ee5\u4e0b\u306e2\u70b9\u3067\u3059\u3002<\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">sin\u00b2\u03b8\uff0bcos\u00b2\u03b8\uff1d1<\/strong><\/b><\/p>\n<\/div>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">tan\u03b8\uff1dsin\u03b8\uff0fcos\u03b8<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u308c\u3089\u3092\u5229\u7528\u3059\u308b\u3068\u30011\u3064\u306e\u4e09\u89d2\u6bd4\u304b\u3089\u5225\u306e\u4e09\u89d2\u6bd4\u3092\u6c42\u3081\u305f\u308a\u3001\u8907\u96d1\u306a\u8a08\u7b97\u3092\u6574\u7406\u3057\u305f\u308a\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"sincos1\">sin\u00b2\u03b8\uff0bcos\u00b2\u03b8\uff1d1<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u5bfe\u8fba\u3092a\u3001\u96a3\u8fba\u3092b\u3001\u659c\u8fba\u3092c\u3068\u3059\u308b\u3068\u3001\u4e09\u5e73\u65b9\u306e\u5b9a\u7406\u304b\u3089\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>a\u00b2\uff0bb\u00b2\uff1dc\u00b2<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u304c\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e21\u8fba\u3092c\u00b2\u3067\u5272\u308b\u3068\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>(a\/c)\u00b2\uff0b(b\/c)\u00b2\uff1d1<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u307e\u3059\u3002\u3053\u3053\u3067a\/c\uff1dsin\u03b8\u3001b\/c\uff1dcos\u03b8\u306a\u306e\u3067\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><b><strong class=\"editor-textBold\">sin\u00b2\u03b8\uff0bcos\u00b2\u03b8\uff1d1<\/strong><\/b><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u304c\u5c0e\u304b\u308c\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u306e\u516c\u5f0f\u306f\u3001<span class=\"keiko_blue\"><strong>sin\u3068cos\u306e\u3069\u3061\u3089\u304b\u4e00\u65b9\u304c\u5206\u304b\u3063\u3066\u3044\u308b\u3068\u304d\u306b\u3001\u3082\u3046\u4e00\u65b9\u3092\u6c42\u3081\u308b\u5834\u5408\u306a\u3069\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/strong><\/span><\/p>\n<p dir=\"ltr\">\u3055\u3089\u306b\u3001\u5f8c\u8ff0\u306e\u5358\u4f4d\u5186\u3092\u7528\u3044\u3066\u8003\u3048\u308b\u3053\u3068\u3067\u300190\u00b0\u3088\u308a\u5927\u304d\u3044\u89d2\u306b\u3064\u3044\u3066\u3082\u6210\u308a\u7acb\u3061\u307e\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"tansincos\">tan\u03b8\uff1dsin\u03b8\uff0fcos\u03b8<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">sin\u03b8\uff1d\u5bfe\u8fba\uff0f\u659c\u8fba\u3001cos\u03b8\uff1d\u96a3\u8fba\uff0f\u659c\u8fba\u306a\u306e\u3067\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>sin\u03b8\uff0fcos\u03b8<\/strong><\/span><br \/>\n<span class=\"keiko_green\"><strong>\uff1d\uff08\u5bfe\u8fba\uff0f\u659c\u8fba\uff09\u00f7\uff08\u96a3\u8fba\uff0f\u659c\u8fba\uff09<\/strong><\/span><br \/>\n<span class=\"keiko_green\"><strong>\uff1d\u5bfe\u8fba\uff0f\u96a3\u8fba<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u5bfe\u8fba\uff0f\u96a3\u8fba\u306ftan\u03b8\u305d\u306e\u3082\u306e\u306a\u306e\u3067\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><b><strong class=\"editor-textBold\">tan\u03b8\uff1dsin\u03b8\uff0fcos\u03b8 \uff08cos\u03b8\u22600\uff09<\/strong><\/b><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"i-10\">\u305d\u306e\u4ed6\u306e\u95a2\u4fc2<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">\u57fa\u672c\u516c\u5f0f\u304b\u3089\u3001\u3055\u3089\u306b\u3044\u304f\u3064\u304b\u306e\u95a2\u4fc2\u3092\u5c0e\u304f\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3068\u3048\u3070\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u95a2\u4fc2\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n<div class=\"sng-box box1\">\n<p>\u30fbsin(90\u00b0\u2212\u03b8)\uff1dcos\u03b8<\/p>\n<p>\u30fbcos(90\u00b0\u2212\u03b8)\uff1dsin\u03b8<\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">30\u00b0\u306860\u00b0\u3067sin\u3068cos\u304c\u5165\u308c\u66ff\u308f\u308b\u306e\u306f\u3001\u3053\u306e\u4f59\u89d2\u306e\u95a2\u4fc2\u306b\u3088\u308b\u3082\u306e\u3067\u3059\u3002<\/p>\n<h2 class=\"editor-h2\"><span id=\"90\">\u4e09\u89d2\u6bd4\u306e\u62e1\u5f35\uff5c90\u00b0\u3088\u308a\u5927\u304d\u3044\u89d2\u3068\u5358\u4f4d\u5186<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\">\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u306e\u4e09\u89d2\u6bd4\u306f\u4e3b\u306b0\u00b0\u301c90\u00b0\u306e\u7bc4\u56f2\u3067\u8003\u3048\u307e\u3059\u304c\u3001\u6570\u5b66\u3067\u306f90\u00b0\u3088\u308a\u5927\u304d\u3044\u89d2\u306b\u3064\u3044\u3066\u3082sin\u30fbcos\u30fbtan\u3092\u6271\u3044\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u305d\u3053\u3067\u767b\u5834\u3059\u308b\u306e\u304c\u300c\u5358\u4f4d\u5186\u300d\u3067\u3059\u3002<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-4968\" src=\"https:\/\/axis.onl\/reports\/wp\/wp-content\/uploads\/2026\/08\/\u5358\u4f4d\u5186-1.jpg\" alt=\"\" width=\"1024\" height=\"959\" \/><\/p>\n<h3 class=\"editor-h3\"><span id=\"i-11\">\u5358\u4f4d\u5186\u3068\u306f<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>\u5358\u4f4d\u5186\u3068\u306f\u3001\u4e2d\u5fc3\u304c\u539f\u70b9\u3067\u534a\u5f84\u304c1\u306e\u5186\u306e\u3053\u3068\u3067\u3059\u3002<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u306e\u5186\u4e0a\u3067\u89d2\u03b8\u3060\u3051\u56de\u8ee2\u3057\u305f\u70b9\u306e\u5ea7\u6a19\u3092\u8003\u3048\u308b\u3068\u3001<\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">x\u5ea7\u6a19\uff1dcos\u03b8\u3001y\u5ea7\u6a19\uff1dsin\u03b8<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u3057\u3066sin\u3068cos\u3092\u8868\u305b\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u306e\u8003\u3048\u65b9\u3092\u4f7f\u3046\u3053\u3068\u3067\u300190\u00b0\u3092\u8d85\u3048\u308b\u89d2\u5ea6\u3067\u3082\u4e09\u89d2\u6bd4\u3092\u4e00\u8cab\u3057\u3066\u8003\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p dir=\"ltr\">\u753b\u50cf\u3067\u8aac\u660e\u3059\u308b\u3068\u3001\u5358\u4f4d\u5186\u4e0a\u306e\u70b9 (P(x,y)) \u3067\u306f\u3001x\u5ea7\u6a19\u304ccos\u03b8\u3001y\u5ea7\u6a19\u304csin\u03b8\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"90sincostan\">90\u00b0\u3088\u308a\u5927\u304d\u3044\u89d2\u306esin\u30fbcos\u30fbtan<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">90\u00b0\u3092\u8d85\u3048\u3066360\u00b0\u307e\u3067\u306e\u89d2\u5ea6\u3067\u306f\u3001\u70b9\u306f\u7b2c\u2161\u8c61\u9650\u3001\u7b2c\u2162\u8c61\u9650\u3001\u7b2c\u2163\u8c61\u9650\u3078\u79fb\u52d5\u3057\u307e\u3059\u3002\u7b2c\u2161\u8c61\u9650\u3067\u306fcos\u306f\u8ca0\u3001sin\u306f\u6b63\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">sin\u306fy\u5ea7\u6a19\u3001cos\u306fx\u5ea7\u6a19\u306b\u5bfe\u5fdc\u3059\u308b\u305f\u3081\u3001\u8c61\u9650\u306b\u3088\u3063\u3066\u6b63\u8ca0\u304c\u5909\u308f\u308a\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u307e\u305f\u3001tan\u03b8\uff1dsin\u03b8\uff0fcos\u03b8\u306a\u306e\u3067\u3001cos\u03b8\u304c0\u306b\u306a\u308b90\u00b0\u3084270\u00b0\u3067\u306ftan\u306f\u5b9a\u7fa9\u3055\u308c\u307e\u305b\u3093\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u306e\u3088\u3046\u306b\u5358\u4f4d\u5186\u3092\u4f7f\u3046\u3068\u3001\u4e09\u89d2\u6bd4\u306e\u5024\u3060\u3051\u3067\u306a\u304f\u3001\u6b63\u8ca0\u3084\u89d2\u5ea6\u306b\u3088\u308b\u5909\u5316\u3082\u8996\u899a\u7684\u306b\u7406\u89e3\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"180270360\">180\u00b0\u30fb270\u00b0\u30fb360\u00b0\u3068\u306e\u95a2\u4fc2<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">\u4ee3\u8868\u7684\u306a\u89d2\u5ea6\u3067\u306f\u3001<\/p>\n<ul class=\"editor-ul\">\n<li class=\"editor-listItem\" value=\"1\">\n<div class=\"sng-box box1\">0\u00b0\uff1asin\uff1d0\u3001cos\uff1d1<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"2\">\n<div class=\"sng-box box1\">90\u00b0\uff1asin\uff1d1\u3001cos\uff1d0<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"3\">\n<div class=\"sng-box box1\">180\u00b0\uff1asin\uff1d0\u3001cos\uff1d\u22121<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"4\">\n<div class=\"sng-box box1\">270\u00b0\uff1asin\uff1d\u22121\u3001cos\uff1d0<\/div>\n<\/li>\n<li class=\"editor-listItem\" value=\"5\">\n<div class=\"sng-box box1\">360\u00b0\uff1asin\uff1d0\u3001cos\uff1d1<\/div>\n<\/li>\n<\/ul>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u5358\u4f4d\u5186\u3067\u306f360\u00b0\u56de\u8ee2\u3059\u308b\u3068\u5143\u306e\u4f4d\u7f6e\u306b\u623b\u308b\u305f\u3081\u3001\u4e09\u89d2\u6bd4\u306b\u306f\u5468\u671f\u7684\u306a\u6027\u8cea\u304c\u3042\u308b\u3053\u3068\u3082\u5206\u304b\u308a\u307e\u3059\u3002<\/p>\n<h2 class=\"editor-h2\"><span id=\"i-12\">\u4e09\u89d2\u6bd4\u306e\u5fdc\u7528\uff5c\u6b63\u5f26\u5b9a\u7406\u30fb\u4f59\u5f26\u5b9a\u7406\u30fb\u4e09\u89d2\u5f62\u306e\u9762\u7a4d<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e09\u89d2\u6bd4\u306f\u76f4\u89d2\u4e09\u89d2\u5f62\u3060\u3051\u3067\u306a\u304f\u3001\u4e00\u822c\u306e\u4e09\u89d2\u5f62\u306b\u3082\u5fdc\u7528\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u4ee3\u8868\u304c\u6b63\u5f26\u5b9a\u7406\u3001\u4f59\u5f26\u5b9a\u7406\u3001\u4e09\u89d2\u6bd4\u3092\u5229\u7528\u3057\u305f\u9762\u7a4d\u516c\u5f0f\u3067\u3059\u3002<\/p>\n<p dir=\"ltr\"><img loading=\"lazy\" class=\"alignnone size-full wp-image-4966\" src=\"https:\/\/axis.onl\/reports\/wp\/wp-content\/uploads\/2026\/08\/\u6b63\u5f26\u4f59\u5f26.jpg\" alt=\"\" width=\"1024\" height=\"601\" \/><\/p>\n<h3 class=\"editor-h3\"><span id=\"i-13\">\u6b63\u5f26\u5b9a\u7406<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">\u6b63\u5f26\u5b9a\u7406\u306f\u3001\u4ee5\u4e0b\u306e\u3088\u3046\u306a\u95a2\u4fc2\u3067\u3059\u3002<\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">a\/sinA\uff1db\/sinB\uff1dc\/sinC\uff1d2R<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">a\u3001b\u3001c\u306f\u305d\u308c\u305e\u308c\u89d2A\u3001B\u3001C\u306e\u5411\u304b\u3044\u5074\u306e\u8fba\u3001R\u306f\u5916\u63a5\u5186\u306e\u534a\u5f84\u3092\u8868\u3057\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u7279\u306b\u30011\u8fba\u30682\u3064\u306e\u89d2\u304c\u5206\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u306a\u3069\u306b\u5229\u7528\u3057\u3084\u3059\u304f\u3001\u8fba\u3068\u305d\u306e\u5411\u304b\u3044\u5074\u306e\u89d2\u3092\u5bfe\u5fdc\u3055\u305b\u3066\u8003\u3048\u308b\u3053\u3068\u304c\u30dd\u30a4\u30f3\u30c8\u3067\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"i-14\">\u4f59\u5f26\u5b9a\u7406<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">\u4f59\u5f26\u5b9a\u7406\u306f\u3001\u4ee5\u4e0b\u306e\u516c\u5f0f\u3067\u3059\u3002<\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">a\u00b2\uff1db\u00b2\uff0bc\u00b2\u22122bc cosA<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">2\u8fba\u3068\u305d\u306e\u9593\u306e\u89d2\u304c\u5206\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u3084\u30013\u8fba\u304b\u3089\u89d2\u5ea6\u3092\u6c42\u3081\u305f\u3044\u5834\u5408\u306a\u3069\u306b\u5229\u7528\u3067\u304d\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u307e\u305f\u3001A\uff1d90\u00b0\u306a\u3089cos90\u00b0\uff1d0\u3068\u306a\u308b\u305f\u3081\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><b><strong class=\"editor-textBold\">a\u00b2\uff1db\u00b2\uff0bc\u00b2<\/strong><\/b><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u3001\u4e09\u5e73\u65b9\u306e\u5b9a\u7406\u304c\u4f59\u5f26\u5b9a\u7406\u306e\u7279\u5225\u306a\u5834\u5408\u3068\u3057\u3066\u5f97\u3089\u308c\u307e\u3059\u3002<\/p>\n<h3 class=\"editor-h3\"><span id=\"i-15\">\u4e09\u89d2\u5f62\u306e\u9762\u7a4d<\/span><\/h3>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e09\u89d2\u5f62\u306e2\u8fbaa\u3001b\u3068\u3001\u305d\u306e\u9593\u306e\u89d2C\u304c\u5206\u304b\u3063\u3066\u3044\u308b\u5834\u5408\u3001\u9762\u7a4dS\u306f\u3001<\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">S\uff1d1\/2 ab sinC<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">\u3067\u6c42\u3081\u3089\u308c\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3053\u308c\u306f\u4e2d\u5b66\u6821\u3067\u5b66\u3076\u300c\u5e95\u8fba\u00d7\u9ad8\u3055\u00f72\u300d\u306b\u4e09\u89d2\u6bd4\u3092\u7d44\u307f\u5408\u308f\u305b\u305f\u516c\u5f0f\u3067\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u305f\u3068\u3048\u3070\u8fbaa\u3092\u5e95\u8fba\u3068\u3059\u308b\u3068\u3001\u9ad8\u3055\u306fb sinC\u3067\u8868\u305b\u308b\u305f\u3081\u3001<\/p>\n<p class=\"editor-normal\" dir=\"ltr\"><span class=\"keiko_green\"><strong>S\uff1d1\/2\u00d7a\u00d7b sinC<\/strong><\/span><\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u9ad8\u3055\u304c\u76f4\u63a5\u5206\u304b\u3089\u306a\u3044\u4e09\u89d2\u5f62\u3067\u3082\u30012\u8fba\u3068\u305d\u306e\u9593\u306e\u89d2\u304c\u5206\u304b\u308c\u3070\u9762\u7a4d\u3092\u6c42\u3081\u3089\u308c\u308b\u70b9\u304c\u3001\u3053\u306e\u516c\u5f0f\u306e\u5927\u304d\u306a\u7279\u5fb4\u3067\u3059\u3002<\/p>\n<h2 class=\"editor-h2\"><span id=\"i-16\">\u307e\u3068\u3081<\/span><\/h2>\n<p class=\"editor-normal\" dir=\"ltr\">\u4e09\u89d2\u6bd4\u3068\u306f\u3001\u89d2\u5ea6\u3068\u8fba\u306e\u9577\u3055\u306e\u6bd4\u3092\u7d50\u3073\u3064\u3051\u308b\u6570\u5b66\u306e\u57fa\u672c\u7684\u306a\u8003\u3048\u65b9\u3067\u3059\u3002\u76f4\u89d2\u4e09\u89d2\u5f62\u3067\u306f\u3001\u57fa\u6e96\u3068\u306a\u308b\u89d2\u03b8\u306b\u5bfe\u3057\u3066\u3001<\/p>\n<div class=\"sng-box box1\">\n<p class=\"editor-normal\" dir=\"ltr\"><b><strong class=\"editor-textBold\">sin\u03b8\uff1d\u5bfe\u8fba\uff0f\u659c\u8fba<\/strong><\/b><br \/>\n<b><strong class=\"editor-textBold\">cos\u03b8\uff1d\u96a3\u8fba\uff0f\u659c\u8fba<\/strong><\/b><br \/>\n<b><strong class=\"editor-textBold\">tan\u03b8\uff1d\u5bfe\u8fba\uff0f\u96a3\u8fba<\/strong><\/b><\/p>\n<\/div>\n<p class=\"editor-normal\" dir=\"ltr\">\u3068\u5b9a\u7fa9\u3055\u308c\u307e\u3059\u3002<\/p>\n<p class=\"editor-normal\" dir=\"ltr\">\u307e\u305a\u306f<span class=\"keiko_green\"><strong>\u5bfe\u8fba\u30fb\u96a3\u8fba\u30fb\u659c\u8fba\u3092\u6b63\u3057\u304f\u898b\u5206\u3051\u3001sin\u30fbcos\u30fbtan\u306e\u57fa\u672c\u7684\u306a\u95a2\u4fc2\u3092\u78ba\u5b9f\u306b\u62bc\u3055\u3048\u307e\u3057\u3087\u3046\u300230\u00b0\u30fb45\u00b0\u30fb60\u00b0\u306e\u4e09\u89d2\u6bd4\u306f\u3001\u7279\u6b8a\u306a\u76f4\u89d2\u4e09\u89d2\u5f62\u306e\u8fba\u306e\u6bd4\u3068\u5408\u308f\u305b\u3066\u899a\u3048\u308b\u3068\u3001\u5fd8\u308c\u305f\u3068\u304d\u306b\u3082\u5c0e\u304d\u51fa\u305b\u307e\u3059\u3002<\/strong><\/span><\/p>\n<p class=\"editor-normal\" 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