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Addition of 2 Directed Numbers
Author:
Chan Man Fai
Addition of 2 directed numbers
GeoGebra
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三位數除以一位數（一）
兩組對邊相等和有直角的四邊形
錐體建築師
【案例】2018年全国1卷理科12题
【案例】2013年安徽高考15题
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test
圓繞圓內外
f(x)=ax^2
高中多項式
橢圓 推桿例題
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Standard Deviation
Binomial Distribution
Centroid or Barycenter
Poisson Distribution
Conic Sections