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三角関数（正弦、余弦）
Author:
yukumura yasunori
Topic:
Trigonometric Functions
GeoGebra
New Resources
正１７角形 作図 regular 17-gon 2
standingwave
円の伸開線
接点の作る円は内接円
sine-wave
Discover Resources
円周角
軌跡 / 逆手流
対数関数の微分係数
ベクトルの平行
ブラズーカ（２０１４）
Discover Topics
Frequency Distribution
Scalene Triangles
Integral Calculus
Similarity Transformation or Similarity
Combinatorics