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Naoki Takami
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タイトルなし
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Naoki Takami
平行移動
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Naoki Takami
最大・最小（4）軸が動くパターン
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Naoki Takami
正多面体
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三角関数のイメージ
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Naoki Takami
三角関数cosθ
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Naoki Takami
三角関数sinθ
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Naoki Takami
