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椭圆内部全等的双椭圆构造.许兴华数学
Author:
许兴华数学
Topic:
Conic Sections
GeoGebra
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【案例】2013年安徽高考15题
三位數除以一位數（二）
GeoGebra笔记功能体验课件
找出對稱軸
異分母分數減法
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Is this a prism 2
glt-c02-10 六角柱旋轉
頂點法
任意三角形
求直角三角形的斜邊
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Functions
Sphere
Constructions
Tangent Function
Continuity