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正三角形在长方形边上移动加滚动
Author:
赵林
GeoGebra
New Resources
兩位數除以一位數（二）
【案例】2013年安徽高考15题
【案例】2018年全国1卷理科12题
判斷球體
找出對稱軸
Discover Resources
分數加法
GeoGebra使用指南
認識時鐘
-3/2 ≤ cosα + cosβ + cosγ ≤ 3
-3 ≤ cosA+cosB+cosC ≤ 3/2
Discover Topics
Reflection
Secant Line or Secant
Rational Numbers
Vectors 3D (Three-Dimensional)
Sphere