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sin.cos
Author:
19留家炫
GeoGebra
New Resources
画直线等分三角形的面积
兩組對邊相等的四邊形
兩位數除以一位數（二）
兩位數加法
GeoGebra笔记功能体验课件
Discover Resources
Percentage (Part-Whole) 所佔百分數
畢氏定理
賴尚欣_等差數列與級數_排數字
y=Asin(wx+f)图像变换
斜率乘积为定值（椭圆、双曲线）
Discover Topics
Similar Triangles
Cosine
Real Numbers
Piecewise Functions
Geometric Distribution