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三角関数（正弦、余弦）
Author:
yukumura yasunori
Topic:
Trigonometric Functions
GeoGebra
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sine-wave
円の伸開線
standingwave
小テスト
standingwave-reflection
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有界の定義（数列）
等円術４円
対応を表現する点とグラフ
方程式の根と係数の関係
平均値の定理
Discover Topics
Arithmetic Mean
Linear Functions
Planes
Symmetry
Plane Figures or Shapes