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円周率と正多角形
Author:
嶋津恒彦
GeoGebra
New Resources
サイクロイド
standingwave-reflection-free
standingwave-plus
standingwave-reflection-fixed
小テスト
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三角形の垂心
三角関数の不等式を解こう
二次方程式の根の意味
max and min of y(x^2+xy+y^2-1) on 4x^2+4xy+3y^2<=1
見える奇数列の和
Discover Topics
Hypothesis Testing
Addition
Conic Sections
Matrices
Circle