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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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正１７角形　作図　regular 17-gon 2
standingwave-plus
直線の軌跡
サイクロイド
standingwave-reflection

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Fourier_02
数学3 放物線と直線
三角形の内角
クロソイド曲線
食塩水を混ぜる

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Trigonometric Functions
Diagrams
Distributions
Matrices
Reflection

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