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直线与椭圆
Author:
lidonglin
焦点到直线的距离之积为定值b方则直线与椭圆相切
GeoGebra
New Resources
球体的截面
GeoGebra数学资源(4-8年级)
异形操场
椭圆内切圆链
双心四边形
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七巧板奔人
基本檔
三個外切圓
三個交點
昆三中课堂试用1
Discover Topics
Functions
Rational Numbers
General Quadrilateral
Cylinder
Surface