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七巧板
Author:
Tse Sir
GeoGebra
New Resources
三位數除以一位數（二）
兩組對邊相等的四邊形
兩組對邊相等和有直角的四邊形
【案例】2013年安徽高考15题
找出對稱軸
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正方變十字
拋物線規
Quadratic Inequalites(ax^2+bx+c)
向量與坐標
旋轉的副本
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Constructions
Root
Sequences and Series
Calculus
Continuity