| 作曲 : 石伟 | |
| 作词 : 石伟 | |
| [00:03] | 三角函数歌诀 |
| [00:06] | 作词：石伟 |
| [00:09] | 作曲：石伟 |
| [00:12] | 演唱：洛天依 |
| [00:18] | 一正二正弦 |
| [00:21] | 三切四余弦 |
| [00:26] | 奇变偶不变 |
| [00:29] | 符号看象限 |
| [00:34] | 余正号相反 |
| [00:37] | 正余号相同 |
| [00:41] | 切和除积差 |
| [00:45] | 切差除积和 |
| [00:49] | 正倍二正余 |
| [00:53] | 余倍平方差 |
| [00:58] | 切倍二正切 |
| [01:01] | 除一平方差 |
| [01:06] | 正三减四立 |
| [01:09] | 余三差四立 |
| [01:14] | 公式在这里 |
| [01:17] | 学数学容易 |
| [01:37] | 一正二正弦 |
| [01:41] | 三切四余弦 |
| [01:45] | 奇变偶不变 |
| [01:49] | 符号看象限 |
| [01:54] | 余正号相反 |
| [01:57] | 正余号相同 |
| [02:01] | 切和除积差 |
| [02:05] | 切差除积和 |
| [02:09] | 正倍二正余 |
| [02:13] | 余倍平方差 |
| [02:17] | 切倍二正切 |
| [02:21] | 除一平方差 |
| [02:25] | 正三减四立 |
| [02:29] | 余三差四立 |
| [02:33] | 公式在这里 |
| [02:37] | 学数学容易 |
| [02:40] | 附录：三角函数公式小结见《乐正绫 - 三角函数歌诀》 |
| zuo qu : shi wei | |
| zuo ci : shi wei | |
| [00:03] | san jiao han shu ge jue |
| [00:06] | zuo ci: shi wei |
| [00:09] | zuo qu: shi wei |
| [00:12] | yan chang: luo tian yi |
| [00:18] | yi zheng er zheng xian |
| [00:21] | san qie si yu xian |
| [00:26] | qi bian ou bu bian |
| [00:29] | fu hao kan xiang xian |
| [00:34] | yu zheng hao xiang fan |
| [00:37] | zheng yu hao xiang tong |
| [00:41] | qie he chu ji cha |
| [00:45] | qie cha chu ji he |
| [00:49] | zheng bei er zheng yu |
| [00:53] | yu bei ping fang cha |
| [00:58] | qie bei er zheng qie |
| [01:01] | chu yi ping fang cha |
| [01:06] | zheng san jian si li |
| [01:09] | yu san cha si li |
| [01:14] | gong shi zai zhe li |
| [01:17] | xue shu xue rong yi |
| [01:37] | yi zheng er zheng xian |
| [01:41] | san qie si yu xian |
| [01:45] | qi bian ou bu bian |
| [01:49] | fu hao kan xiang xian |
| [01:54] | yu zheng hao xiang fan |
| [01:57] | zheng yu hao xiang tong |
| [02:01] | qie he chu ji cha |
| [02:05] | qie cha chu ji he |
| [02:09] | zheng bei er zheng yu |
| [02:13] | yu bei ping fang cha |
| [02:17] | qie bei er zheng qie |
| [02:21] | chu yi ping fang cha |
| [02:25] | zheng san jian si li |
| [02:29] | yu san cha si li |
| [02:33] | gong shi zai zhe li |
| [02:37] | xue shu xue rong yi |
| [02:40] | fu lu: san jiao han shu gong shi xiao jie jian yue zheng ling san jiao han shu ge jue |
| zuò qǔ : shí wěi | |
| zuò cí : shí wěi | |
| [00:03] | sān jiǎo hán shù gē jué |
| [00:06] | zuò cí: shí wěi |
| [00:09] | zuò qǔ: shí wěi |
| [00:12] | yǎn chàng: luò tiān yī |
| [00:18] | yī zhèng èr zhèng xián |
| [00:21] | sān qiè sì yú xián |
| [00:26] | qí biàn ǒu bù biàn |
| [00:29] | fú hào kàn xiàng xiàn |
| [00:34] | yú zhèng hào xiāng fǎn |
| [00:37] | zhèng yú hào xiāng tóng |
| [00:41] | qiè hé chú jī chà |
| [00:45] | qiè chà chú jī hé |
| [00:49] | zhèng bèi èr zhèng yú |
| [00:53] | yú bèi píng fāng chà |
| [00:58] | qiè bèi èr zhèng qiē |
| [01:01] | chú yī píng fāng chà |
| [01:06] | zhèng sān jiǎn sì lì |
| [01:09] | yú sān chà sì lì |
| [01:14] | gōng shì zài zhè lǐ |
| [01:17] | xué shù xué róng yì |
| [01:37] | yī zhèng èr zhèng xián |
| [01:41] | sān qiè sì yú xián |
| [01:45] | qí biàn ǒu bù biàn |
| [01:49] | fú hào kàn xiàng xiàn |
| [01:54] | yú zhèng hào xiāng fǎn |
| [01:57] | zhèng yú hào xiāng tóng |
| [02:01] | qiè hé chú jī chà |
| [02:05] | qiè chà chú jī hé |
| [02:09] | zhèng bèi èr zhèng yú |
| [02:13] | yú bèi píng fāng chà |
| [02:17] | qiè bèi èr zhèng qiē |
| [02:21] | chú yī píng fāng chà |
| [02:25] | zhèng sān jiǎn sì lì |
| [02:29] | yú sān chà sì lì |
| [02:33] | gōng shì zài zhè lǐ |
| [02:37] | xué shù xué róng yì |
| [02:40] | fù lù: sān jiǎo hán shù gōng shì xiǎo jié jiàn yuè zhèng líng sān jiǎo hán shù gē jué |
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