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reach_2_8_1
Author:
早苗雅史
GeoGebra
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アステロイド
サイクロイド
standingwave-plus
standingwave-reflection-free
フーリエ級数展開
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graph for math
ミケルの定理（円錐曲線）
空動画
教材って何？
接線 問4
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Geometric Mean
Straight Lines
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Addition
Coordinates