Question

Calcule o determinante da matriz [ 1 3 2],[5 2 3],[4 0 1]

Answer 1

det  =  A[1,1]*A[2,2]*A[3,3] + A[1,2]*A[2,3]*A[3,1] + A[1,3]*A[2,1]*A[3,2] - A[1,3]*A[2,2]*A[3,1] -A[1,1]*A[2,3]*A[3,2]-A[1,2]*A[2,1]*A[3,3]
=
1 * 2 * 1 + 3 * 3 * 4 + 2 * 5 * 0 - 2 * 2 * 4 - 1 * 3 * 0 - 3 * 5 * 3 = 7

7