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三角関数
Author:
Hori Mitsunori
GeoGebra
New Resources
正１７角形 作図 regular 17-gon
アステロイド
サイクロイド
standingwave-plus
sine-wave
Discover Resources
双曲線（hyperbola）
等積変形
CircularWiper
新教科書p１６５
多角形の回転
Discover Topics
Standard Deviation
Ellipse
Real Numbers
Parallelogram
Optimization Problems