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三角形の傍心(excenters)
Author:
Takayuki Kamei
GeoGebra
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円の伸開線
二次曲線と離心率
standingwave-plus
フーリエ級数展開
正17角形 作図 regular 17-gon 2
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畳の敷き方
奇関数と偶関数
中点の軌跡
体積比 も考える
円周角 の定理
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Line Segment
Quadrilaterals
Exponential Functions
Coordinates
Intersection