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三角函數的由來
Author:
陳政任
GeoGebra
New Resources
GeoGebra笔记功能体验课件
兩位數除以一位數（二）
画直线等分三角形的面积
判斷球體
四邊形的特性
Discover Resources
YIPPUIMEIgeogebra
Similar triangles in a triangle
拋物線：切線與弦中點
函数作图工具的副本
等距曲线ggb作图法
Discover Topics
Cube
Piecewise Functions
Median Value
Similar Triangles
Unit Circle