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blue area or red area?
Author:
Bunryu Kamimura
青い面積と赤い面積のどちらが大きい？
GeoGebra
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正１７角形 作図 regular 17-gon 2
standingwave-plus
直線の軌跡
standingwave-reflection
斜めドップラー
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TeX 環境について
円周角の定理
包絡線が描く双曲線 のコピー
円の拡大縮小
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Statistics
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