RREF(A)= [1 2 0 0] [0 0 1 0] [0 0 0 1] [0 0 0 0] Free module of degree 4 and rank 1 over Integer Ring Echelon basis matrix: [ 2 -1 0 0] nullity(A)= 1 RREF(A)= [1 2 0 0] [0 0 1 0] [0 0 0 1] [0 0 0 0] Free module of degree 4 and rank 1 over Integer Ring Echelon basis matrix: [ 2 -1 0 0] nullity(A)= 1 |
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