Question

Seja a matriz A ( 4 1 3 )o determinante da matriz A , det(A) é igual a :
2 1 2
1 0 3
a.Det(A) = 2
b.Det(A) = 10
c.Det(A) = 0
d.Det(A) = 5
e.Det(A) = 21

Answer 1

$\left[\begin{array}{ccc}4&1&3\\2&1&2\\1&0&3\end{array}\right] \\ \\ 12 + 2 - 3 - 6 \\ 14 - 9 \\ \\ Det_{A} = 5$