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calc_p47
Author:
Tatsuyoshi Hamada
GeoGebra
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接点の作る円は内接円
アステロイド
直線の軌跡
standingwave-reflection-fixed
フーリエ級数展開
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フィボナッチ数と黄金比 The golden ratio
【小3】三角定規を重ねて、角度の大小を比較
回転独楽
円の接線3
三平方の定理2020
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Perimeter
Rotation
Mathematics
Kite
Vectors