Find the bases for Col A and Nul A and then state the dimension of these subspaces for the matrix A and an echelon form of A A 1 2 3 3 3 7 14 12 27 1 5 0 6 2 11 25 24 13 31 3 A basis for Col A is given by 1350 6 0142 1 0 0 0 1 2 0000 0