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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
四邊形的特性
兩組對邊相等和有直角的四邊形
球體建築師
【案例】圆柱体内放置一个大球六个小球
柱體建築師
Discover Resources
正方形
高中選修-數學(甲)2-3積分的意義-黎曼和
畢氏定理(遮蔽法)
三垂線定理
规律点问题的动态演示
Discover Topics
Pyramid
Pythagoras or Pythagorean Theorem
Constructions
Mode
Tree Diagrams