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教学素材：圆锥曲线极坐标方程
Author:
清风拂琴，陌上花开
GeoGebra
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三位數除以一位數（二）
畫出對稱圖形
球體建築師
兩位數除以一位數（二）
画直线等分三角形的面积
Discover Resources
分數乘法2
內輪差...
奠基
geogebra
两角差的正弦公式证明2
Discover Topics
Function Graph
Natural Numbers
Arithmetic Operations
Root
Hypergeometric Distribution