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GeoGebra
乘法
Author:
劉婉婷
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展開圓面積 (講義版)的副本
希波拉克月牙型面积
[科
勾股探究
平面截正方体
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解方程式
Ex5D#8
Geometric Solids: Recognize, Name and Sort
碎形
Rotate Ellipse
Discover Topics
Unit Circle
Linear Programming or Linear Optimization
Set Theory
Indefinite Integral
Conic Sections