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相向而行的兩行進波
Author:
ipc Wang
f(x,t)=sin(3x-2t) g(x,t)=sin(3x+2t)
GeoGebra
New Resources
GeoGebra笔记功能体验课件
三位數除以一位數（二）
畫出對稱圖形
兩位數除以一位數（一）
第八周作业
Discover Resources
平行四邊形面積教材三
圖三
二次方程及其圖像
共軛點
Compare areas by cutting shapes Q2
Discover Topics
Sphere
Parametric Curves
Centroid or Barycenter
Natural Numbers
Division