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. 15 12 9-14 A = 080-5 544-6 5 4 3-5 000 B=000 000 det(A) = k-det(B)

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