Suppose that a 3×3 matrix A factors into a product: A = LU = [1 0 0 l21 1 0 l31 l32 1][13 u12 u13 0 1 u23 0 0 1/13] Determine the value of det(A).

Suppose that a 3×3 matrix A factors into a product: A = LU = [1 0 0 l21 1 0 l31 l32 1][13 u12 u13 0 1 u23 0 0 1/13] Determine the value of det(A).

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Suppose that a 3 × 3 matrix A factors into a product:
A = L U = [ 1 0 0 l 21 1 0 l 31 l 32 1 ] [ 13 u 12 u 13 0 1 u 23 0 0 1 13 ]
Determine the value of det ( A ) .

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