# Ch-7-Prob-17-New-이승진

## 2091 days ago by matrix

A=matrix(QQ,3,4,[1,1,1,0,3,2,-5,0,7,-8,1,0]) b=matrix(QQ,3,1,[0,0,0]) print A.augment(b).rref() print print A.right_kernel()
 [1 0 0 0 0] [0 1 0 0 0] [0 0 1 0 0] Vector space of degree 4 and dimension 1 over Rational Field Basis matrix: [0 0 0 1] [1 0 0 0 0] [0 1 0 0 0] [0 0 1 0 0] Vector space of degree 4 and dimension 1 over Rational Field Basis matrix: [0 0 0 1]