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Ex_122
Author:
早苗雅史
GeoGebra
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正１７角形 作図 regular 17-gon 2
等積変形2
円の伸開線
standingwave-reflection
接点の作る円は内接円
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確率（袋から玉を取り出す）
二次関数(範囲片側)
算法天生法指南一之巻(05)解答
判別式の教材最終版
円の拡大縮小
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Quadratic Equations
Fractions
Matrices
Diagrams
Hypergeometric Distribution