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三角関数sinθ・cosθ・tanθの値と単位円
Author:
斎藤 幸弘
GeoGebra
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平均変化率
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直線の軌跡
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分数のかけ算
w=(cz+1)/(z+c)
円と長方形
アステロイド
切頂六面体
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Volume
Parallelogram
Equilateral Triangles
Trapezoid
Circle