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駐波:相向而行的兩行進波線性疊加而成
Author:
ipc Wang
y=sin(3x-2t) y=sin(3x+2t)
GeoGebra
New Resources
四邊形的特性
兩位數除以一位數（二）
找出對稱軸
拼砌四邊形
判斷球體
Discover Resources
在試算表中使用按鈕、下拉式選單、勾選框
弧長與圓周角成比例
探究判定全等三角形的条件（SAS）！
認識角度
Copy of 銳角三角：sin, cos
Discover Topics
Frequency Distribution
Solids or 3D Shapes
Addition
Subtraction
Cuboid