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Author:
Choi King Hong
GeoGebra
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三位數除以一位數（一）
球体的体积推导
【案例】2013年安徽高考15题
畫出對稱圖形
兩組對邊相等的四邊形
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線性規劃 - 數學技巧1
圓餅圖
線段與弧所構成封閉區域的填塞問題
基础知识
橢圓(上下型)標準式
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Matrices
Tangent Function
Triangles
Set Theory
Diagrams