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優良作品2(薇如)
Author:
Ching-Hui Chou
GeoGebra
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垂直線的斜率
【案例】2018年全国1卷理科12题
直線的斜率
兩位數除以一位數（一）
祖冲之的期望：内棋与外棋
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tan(α) tan(β) = ?
圖四
三角形重心
angles in the same segment
立體函數圖形
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Trigonometry
Plane Figures or Shapes
Scatter Plot
Cube
Unit Circle