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Mamikon's theory/楕円の周囲の接線団
Author:
Naofumi Horio
GeoGebra
New Resources
standingwave-plus
カージオイド
正１７角形 作図 regular 17-gon
接点の作る円は内接円
アステロイド
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ヒポクラテスの定理Hippocrates's theorem
三角形の傍心（excenters）
数学3 円周角の定理
日食と月食
余弦定理
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Volume
Rhombus
Logarithmic Functions
Conditional Probability
Upper and Lower Sum or Riemann Sum