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三角形の角の二等分線と比
Author:
田中利則
GeoGebra
New Resources
sine-wave
対数螺旋
アステロイド
直方体の対角線
standingwave-reflection
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TeX environments
三平方の定理 証明１６
kadai
放物線の外接三角形の極線は重心を通る
見えるフィボナッチ数列
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Logarithm
Geometric Mean
Diagrams
Arithmetic Mean
Equilateral Triangles