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ie 2
Author:
LAM YU SANG
GeoGebra
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直角坐標平面上的旋轉變換
【案例】2013年安徽高考15题
算柱 (兩位數)
異分母分數減法
兩位數除以一位數（一）
Discover Resources
Symmetric設計對稱圖案(兩條對稱軸)(斜)
彩色包絡球
圓周率的應用 題B
集合
sintx
Discover Topics
Logarithm
Curve Sketching
Trigonometric Functions
Planes
Sphere