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matrix of rotation transformation
Author:
华杰 苏
Topic:
Matrices
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
四邉形 (四年級) 教師版
兩位數加法
三位數除以一位數（二）
兩位數除以一位數（一）
Discover Resources
拋物線之極偶 / polarity for parabola
利用Geogebra說明線性函數的圖形性質
vertex
完整地球儀
分數化百分數(預習)
Discover Topics
Derivative
Parabola
Binomial Distribution
Angles
General Quadrilateral