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賺賠：例3
Author:
GeoGebra Institute of Hong Kong
GeoGebra
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圓的切線方程
双心四边形
平行線的斜率
圓周公式的應用
【案例】2018年全国1卷理科12题
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proof ASA
正方體的旋轉對稱
二次函数最值问题
基測數學100-1-30 等腰三角形的角度
垂心
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Mode
Subtraction
Arithmetic
Definite Integral
Sequences and Series