Question

Dada a matriz B
3 -1 7
2 2 -8
1 0 4

Calcule a determinante

Answer 1

det(b) = (3*2*4) + ((-1)*(-8)*1) + (7*2*0) - (7*2*1) - ((-1)*2*4) - (3*(-8)*0)= 24 + 8 - 14 - 8 = 10