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三角函數的週期變化
Author:
luke huang
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等的四邊形
球体的体积推导（优化版）
第八周作业
GeoGebra笔记功能体验课件
Discover Resources
quadrilaterals 2
君子球
由線段與弧構成的封閉區域填色
三角函數由來= =
折叠问题一例
Discover Topics
Coordinates
Percentages
Linear Programming or Linear Optimization
Geometric Transformations
Interest Calculation