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橢圓的軌跡
Author:
chiway
Topic:
Ellipse
GeoGebra
New Resources
找出對稱軸
畫出對稱圖形
球体的体积推导（优化版）
異分母分數減法
【案例】2018年全国1卷理科12题
Discover Resources
摸似利萨如图形
認識線型函數
同弓形內的圓周角
Angle in alternate segment
One less prime number
Discover Topics
LCM and GCD
Terms
Division
Congruence
Linear Equations