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Author:
万超杰
GeoGebra
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sanjiaohanshu
GeoGebra笔记功能体验课件
近似值：有效數字
小数 的副本
判斷球體
Discover Resources
Trigonometric Ratios of Special Angles 特殊角的三角比
圆锥曲线定义的拓展（卡西尼卵形线）
三角函數圖形（全）
n星角
冰淇淋
Discover Topics
Isosceles Triangles
Optimization Problems
Trigonometry
Parabola
Equations