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椭圆的两条垂直切线的交点轨迹
Author:
istone
Topic:
Ellipse
,
Geometric Transformations
GeoGebra
New Resources
球体的体积推导（优化版）
畫出對稱圖形
四邊形的特性
三位數除以一位數（一）
GeoGebra笔记功能体验课件
Discover Resources
Pyramid and Cone1
旋转体的定义
軌跡方程式-垂直切線
quadratic
平分线段或角
Discover Topics
Median Value
Upper and Lower Sum or Riemann Sum
Matrices
Translation
Parabola