1 1 1 1 1 1 0 2 0 1 2 -1 5 3 6 4. Consider A = 01 -1 0-1 -1 2 -4 1 -2 with a corresponding rref (A) = 00 0 1 1 4 -2 10 9 15 00 0 0 0 • State a basis for the column space of A. . Choose one of the columns from A not selected as part of the basis and show how it is a linear combination of your basis.