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圓心的軌跡方程式
Author:
李詠甯
GeoGebra
New Resources
【案例】2013年安徽高考15题
兩位數加法
算柱 (兩位數)
【案例】2018年全国1卷理科12题
兩位數除以一位數（一）
Discover Resources
trapezium
乘法
angles sum of a triangle 1
垂心
畢氏定理的副本
Discover Topics
Translation
Frequency Distribution
Subtraction
Cone
Sequences and Series