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椭圆两个焦点与椭圆上点的连线
Author:
孟宝兴
椭圆两个焦点与椭圆上点的连线
GeoGebra
New Resources
算柱 (兩位數)
兩位數加法
兩位數除以一位數（一）
判斷球體
画直线等分三角形的面积
Discover Resources
鏡射矩陣 (CAS)
Chapter 1
堆朵
旋轉指令
在数轴上表示根号数
Discover Topics
Curve Sketching
Step Functions
Scalene Triangles
General Quadrilateral
Reflection