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角平分线
Author:
安迎春
GeoGebra
New Resources
兩組對邊相等的四邊形
找出對稱軸
GeoGebra笔记功能体验课件
異分母分數減法
三位數除以一位數（一）
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[問題] a² + b² = 1, (c-4)² + (d-2)² = 5，求 ad - bc 最大值？
固定軌跡問題
學習單：三角形內(外)角合
Testing slope
GeoGebra绘本团队-绘本范例
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Kite
Logarithm
Algebra
LCM and GCD
Rational Numbers