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椭圆的离心率
Author:
孟宝兴
GeoGebra
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四邊形的特性
【案例】圆柱体内放置一个大球六个小球
兩位數加法
算柱 (兩位數)
兩組對邊相等的四邊形
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比和比值
小數在數線上的位置2
Why same areas?
與兩圓相切之圓心雙曲線軌跡
多边形向量序列
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Similarity Transformation or Similarity
Mode
Vectors 3D (Three-Dimensional)
Diagrams
Limits