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正弦线用
Author:
孙倩雅
GeoGebra
New Resources
球体的体积推导
柱體建築師
兩位數除以一位數（一）
異分母分數減法
兩位數除以一位數（二）
Discover Resources
正方形和長方形有甚麼特性？
指数函数与对数函数关于y=x对称
-3/2 ≤ cosα + cosβ + cosγ ≤ 3
扇形在射线上滚动
圆面积的推导-开普勒法
Discover Topics
Median Value
Dilation
Upper and Lower Sum or Riemann Sum
Boxplot
Sequences and Series