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peacock3
Author:
李春培
peacock3
GeoGebra
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畫出對稱圖形
算柱 (兩位數)
【案例】2013年安徽高考15题
球體建築師
直角坐標平面上的旋轉變換
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拉格朗日插值多項式
Addition and Subtraction of Directed Numbers (1) 有向數加減(1)
加法
歪斜線
Activity 2
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Line Segment
Rectangle
Matrices
Mathematics
Prism