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三角函數值 (特別角)
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
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【案例】2013年安徽高考15题
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（一）
異分母分數減法
Discover Resources
優良作品3(昀潔)
題三
vectore_four stack pile
Ex5C#10
赋值保存法
Discover Topics
Square
Differential Equation
Confidence Interval
Cube
Isosceles Triangles