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三角関数（正弦、余弦）
Author:
元木 啓史
Topic:
Trigonometric Functions
GeoGebra
New Resources
正１７角形 作図 regular 17-gon 2
standingwave-reflection-free
standingwave-reflection
対数螺旋
standingwave-plus
Discover Resources
放物線の垂点
四次方程式の根
sinx のグラフ
キートレ329
STEP B 59
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Ratios
Calculus
Congruence
Planes
Solids or 3D Shapes