Question

Determinado matriz M (2,2-1) , (4,1,-2) (0,4,0) e igual a : A det(M) =9 ; B det(M)=-16 ; C det(M)=-9 ; D dt(M) = 0 ;E det(M) =16

Answer 1

$\left[\begin{array}{ccc}2&2&-1\\4&1&-2\\0&4&0\end{array}\right] \left[\begin{array}{ccc}2&2\\4&1\\0&4\end{array}\right]$

D = 0 - 0 - 16 - (0 - 16 + 0) → -16 + 16 → d(M) = 0
letra d).