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三角函数
Author:
吴勇
GeoGebra
New Resources
找出對稱軸
三位數除以一位數（一）
三位數除以一位數（二）
判斷球體
GeoGebra笔记功能体验课件
Discover Resources
好玩的輪盤
定值角度
兩線段和圓3
正弦图像
圆-视觉差
Discover Topics
Normal Distribution
Fractal Geometry
Probability
Geometry
Tangent Line or Tangent