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一元二次方程式
Author:
李春培
一元二次方程式
GeoGebra
New Resources
兩位數除以一位數（一）
【案例】2018年全国1卷理科12题
三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
找出對稱軸
Discover Resources
以面積固定平行線軌跡
Geometric Meaning of Derivatives
畢氏三元數
Graph of Cosine
科氏力 (Coriolis Force)
Discover Topics
Statistical Characteristics
Rectangle
Integral Calculus
Means
Complex Numbers