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椭圆的两条垂直切线的交点轨迹 蒙日圆
Author:
冯伟冀
,
istone
Topic:
Ellipse
,
Geometric Transformations
GeoGebra
New Resources
找出對稱軸
錐體建築師
拼砌四邊形
兩位數加法
異分母分數減法
Discover Resources
正十二面體
曲線下面積
大邊對大角
模擬3D---切割與展開
一般線性變換
动态演示面动成体：圆柱、圆锥、圆台、球
Discover Topics
Differential Equation
Congruence
Polynomial Functions
Sphere
Optimization Problems