# LA+CH2+P4+Solved+by+주영은

## 2272 days ago by math2013

A = matrix(4,4,[1,-2,4,3,2,-5,1,-2,3,4,-2,5,2,-3,3,2]) print A.rref() B = matrix(4,4,[1,1,2,-4,1,2,2,-4,1,3,2,-4,1,2,2,-4]) print B.rref()
 [1 0 0 1] [0 1 0 1] [0 0 1 1] [0 0 0 0] [ 1 0 2 -4] [ 0 1 0 0] [ 0 0 0 0] [ 0 0 0 0] [1 0 0 1] [0 1 0 1] [0 0 1 1] [0 0 0 0] [ 1 0 2 -4] [ 0 1 0 0] [ 0 0 0 0] [ 0 0 0 0]