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三角比の拡張

Author:長川美子

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小テスト
standingwave
二次曲線と離心率
接点の作る円は内接円
対数螺旋

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合同の証明
mh[2次関数][標準形]
松かさとアルキメデスらせん Pinecone and Archimedes Spiral
お魚天国と相似
三平方の定理の導入

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Trigonometry
General Quadrilateral
Parallelogram
Optimization Problems
Constructions

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