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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
画直线等分三角形的面积
柱體建築師
兩組對邊相等的四邊形
錐體建築師
四邉形 (四年級) 教師版
Discover Resources
regular tetrahedron in a cube
圓周 (圖形B)
ghseh 二次函數動畫上下平移
Geometry : Basic Elements (幾何： 基本元素)
極值問題
Discover Topics
Geometric Mean
Step Functions
Statistics
Piecewise Functions
Circumcircle or Circumscribed Circle