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ptcc trigo level 2
Author:
Cheung Wing Chuen
GeoGebra
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GeoGebra笔记功能体验课件
畫出對稱圖形
三位數除以一位數（一）
找出對稱軸
錐體建築師
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以反演看 n 次方根
與三個半圓相切的圓不規則區域著色
直線上的鄰角_2
三視圖
動態軌跡與動態色彩
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Conditional Probability
Optimization Problems
Random Variables
Parametric Curves
Derivative