The echelon form of matrix A = -1.5 0 -1 -2 2 -5 9 -2 6 3 7 39 -275 3 34 6 37 is matrix A = 3 0 0 0 -1 7 0 6 2 403 0 0 1 1 0 000 . The basis for Col A is

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A: Given matrix is A = -3-1-2-2-1002-1