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y=sinx对称中心
Author:
张金伟
GeoGebra
New Resources
柱體建築師
直角坐標平面上的旋轉變換
錐體建築師
兩位數除以一位數（二）
拼砌四邊形
Discover Resources
gltyz 矩形旋轉體
橢圓包絡線
Golden Ratio (phi) Collection
圓周 (圖形A) 的複本
f(x)=sinx的圖形--伸縮與平移
Discover Topics
Means
Optimization Problems
Equilateral Triangles
Rotation
Polynomial Functions