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. -1 10 8 7 3 A = 5 -9 2 -5 45 -57 33 32 0 00 0 B =0 0 0 0 0 0 0 0 det(A) = k•det(B) = 0:0 = 0 O o n

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