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國旗
Author:
吳冠霖
GeoGebra
New Resources
拼砌四邊形
球體建築師
兩位數加法
錐體建築師
球体的体积推导（优化版）
Discover Resources
標準分解式與方根化簡
周界-平移法(練習一)
Graph of Quadratic Function 二次方程圖像
sine graph (reduce to 1/2 and then translate leftward by 15 degree)
gyzpa 拋物面鏡的反射
Discover Topics
Complex Numbers
Area
Set Theory
Prism
Ellipse