# Chapter2 Problem 3 주영은

## 2281 days ago by math2013

A = matrix(3,6,[1,4,5,-9,7,1,0,2,4,-6,-6,2,0,0,0,-5,0,3]) print A.rref()
 [ 1 0 -3 0 19 -6/5] [ 0 1 2 0 -3 -4/5] [ 0 0 0 1 0 -3/5] [ 1 0 -3 0 19 -6/5] [ 0 1 2 0 -3 -4/5] [ 0 0 0 1 0 -3/5]