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三角函數 角度變換(個人認為直覺上較好理解的)(手機使用教材)
Author:
宋政蒲
Topic:
Cosine
,
Sine
,
Tangent Function
,
Trigonometric Functions
此處只列出我認為幾種較容易理解的情形。分別是同界角、餘角(正餘互換)、負角、對向以及補角。拖曳粉紅色的點,即可調整角度大小。
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兩組對邊相等和有直角的四邊形
拼砌四邊形
柱體建築師
兩位數除以一位數(一)
異分母分數減法
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sum of interior angle
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