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単位円と三角比の値
Author:
nagao
GeoGebra
New Resources
目で見る立方体の2等分
正１７角形 作図 regular 17-gon
standingwave
正１７角形 作図 regular 17-gon 2
対数螺旋
Discover Resources
高次方程式と複素数解
Circle Art
Yamaguchi's Curve of constant width
三角関数のグラフ 周期変化
GHS2413
Discover Topics
Right Triangles
Prism
Sine
Complex Numbers
Numbers