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特殊な正接の2倍角の視覚的理解

Author:holon

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standingwave-plus
目で見る立方体の2等分
standingwave-reflection-free
６章⑥三角柱の展開図
カージオイド

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x=cos3t,y=sin4t
カージオイド
円錐曲線による作図
小円の周りに半径が変化するN個の円
agaress

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LCM and GCD
Angles
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