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垂直線的斜率_hui sir
Author:
Hui Sir
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
兩位數除以一位數（一）
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图形
題5
角α与-α的正弦函数关系
畢達哥拉斯定理
判斷線型函數y=f(x)=ax+b的b值(隨機出題)
時距計算機 (時針改變)
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Mathematics
Integral Calculus
Geometry
Numbers
Tangent Function