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sine graph (reduce to 1/2 and then translate leftward by 15 degree)
Author:
Queenie Chan
GeoGebra
New Resources
三位數除以一位數（二）
畫出對稱圖形
球体的体积推导
兩組對邊相等的四邊形
球體建築師
Discover Resources
二項分佈
rabbit
線性組合2： 三角形
拼出三角形
質數
Discover Topics
Surface
Exponential Functions
Equations
Conic Sections
Natural Numbers