Column Space. Let T = {A1, A2, A3, A4, A5}, where Ar is the k-th column of the matrix A in the previous problem. The column space of A is the subspace W = span(T). Notice that T generates W but T is not linearly independent. Use the Reduction Lemma to find a basis for the column space of A. (Hint: Relationships between the columns of RREF(A) can help you determine relationships between the columns of A!) A= ?i 1 2 4 4 8 -1 0 -1 5 3 8 -2] 5 3