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橢圓動畫
Author:
chen mingchuan
GeoGebra
New Resources
畫出對稱圖形
兩位數除以一位數（二）
三位數除以一位數（二）
【案例】圆柱体内放置一个大球六个小球
異分母分數減法
Discover Resources
拋物線
parallelgram with height 20120319
和的完全平方
數值滑桿_長方形1
动点最值问题&抛物线模型
Discover Topics
Quadratic Functions
Geometry
Vectors 2D (Two-Dimensional)
Stochastic Process or Random Process
Arithmetic