Compute the determinant of the matrix A, below, by using row operations to transform A to an upper-triangular matrix B. Then express the determinant of A as a multiple k of the determinant of B, and use this to compute the determinant of A. A = 2 -3 -7 -5 -6 13 30 15 0 0 -2 6 0 0 4 -2 000 B=000 000

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