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三節棍1060317
Author:
陳正鴻
GeoGebra
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直角坐標平面上的旋轉變換
畫出對稱圖形
找出對稱軸
兩位數加法
算柱 (兩位數)
Discover Resources
畢氏定理
正三角形
擲銀實驗
銳角三角：sin, cos
洋葱初中数学
Discover Topics
Line Segment
Special Points
Parabola
Differential Calculus
Ellipse