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sine graph (reduce to 1/2 and then translate leftward by 15 degree)
Author:
Queenie Chan
GeoGebra
New Resources
四邉形 (四年級) 教師版
直角坐標平面上的旋轉變換
畫出對稱圖形
異分母分數減法
近似值：有效數字
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線性組合1：正六邊形
線性規劃(半平面)
孔明棋
線性規劃
固定三角形的條件−題5的副本
Discover Topics
Surface
Upper and Lower Sum or Riemann Sum
Unit Circle
Translation
Cube