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. 1-4 A = = B = 1 - 08 2 -3 00 0 1 87 9 0 0 0 0 0 0 0 0 0000 0 0 0 0 det(A) = k det(B) = 0.0 = 0

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