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三角函數的週期變化
Author:
luke huang
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
拼砌四邊形
兩組對邊相等的四邊形
三位數除以一位數（一）
找出對稱軸
Discover Resources
三下_三角形( 教師版)
三角函數
認識函數(表格形式隨機出題)
旋转体
Copy of 圖一
二项式定理
Discover Topics
Sequences and Series
Triangles
Arithmetic
Binomial Distribution
Scalene Triangles