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Ex5D#5
Author:
Big Lee
GeoGebra
New Resources
撒针估算面积实验
折扣
第三周作业效果演示
斐波那契螺旋弧线（表格法-可动态调节）
第八周作业3
Discover Resources
二次函數圖形與兩軸的交點
GeoGebra与数学教育论坛通知
Copy of 方格紙上畫四邊形
Problem1:(md+me+mf)/(ad+be+cf)=a
Tangent of a Circle 圓的切線
Discover Topics
Quadratic Functions
Differential Calculus
Hyperbola
Solids or 3D Shapes
Geometry