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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
算柱 (兩位數)
直角坐標平面上的旋轉變換
三位數除以一位數(一)
兩位數除以一位數(一)
柱體建築師
Discover Resources
正七邊形2
單項奇函數
正立方體反射面
探索金字塔高度
sequence-circle
Discover Topics
Similar Triangles
Power Functions
Set Theory
Mode
Arithmetic Operations