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二次函数y=ax²（a＞0)
Author:
吕胜
GeoGebra
New Resources
拼砌四邊形
異分母分數減法
【案例】圆柱体内放置一个大球六个小球
兩組對邊相等的四邊形
【案例】2013年安徽高考15题
Discover Resources
乘法1
線性組合3：正方形
軌跡觀察---兩圓上線段中點
二次函數
勾股定理：射影无字证明
Discover Topics
Standard Deviation
Difference and Slope
Parametric Curves
Normal Distribution
Linear Functions