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13-01波型包絡線
Author:
pingfeng.wu
Topic:
Circle
,
Geometry
GeoGebra
New Resources
錐體建築師
兩位數除以一位數（二）
四邊形的特性
找出對稱軸
算柱 (兩位數)
Discover Resources
三独立开关电路
proof SSS
畢氏定理
圆锥曲线定义的拓展（卡西尼卵形线）
空間座標系
Discover Topics
Perimeter
Calculus
Exponential Functions
Optimization Problems
Ellipse