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黃金三角形
Author:
h6741957g
GeoGebra
New Resources
兩位數加法
【案例】2013年安徽高考15题
算柱 (兩位數)
兩位數除以一位數（二）
GeoGebra笔记功能体验课件
Discover Resources
normal vector
心型線
中国GeoGebra用户认证说明
乘法
f(x)=ax^2
Discover Topics
Rotation
Differential Equation
Equations
Parallelogram
Equilateral Triangles