Question

Ache o valor determinante
2 -1 3
0 4 5
6 -2 1

Answer 1

[2 -1 3]

A= [0 4 5]

[6 -2 1]

Det A=2.(4.1+2.5)+1(-[6.5]) +3.(-[6.4])

Det A=2.(4+10)+1(-30)+3.(-24)

Det A=28-30-72=-74