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(3cos2y ; y)
Author:
Sin Min
GeoGebra
New Resources
拼砌四邊形
兩組對邊相等和有直角的四邊形
第八周作业
三位數除以一位數（一）
三位數除以一位數（二）
Discover Resources
物件的平移概念
立方和
SSA為何不能保證全等
二次函數不等式及其圖像(進階版)
In-centre
Discover Topics
Equations
Calculus
Straight Lines
Vectors 2D (Two-Dimensional)
Parametric Curves