Question

Não consegui calcular

Answer 1

Resposta:

$\textsf{Segue a resposta abaixo}$

Explicação passo-a-passo:

$\sf M=\left(\begin{array}{ccc}\sf2&\sf4&\sf0\\\sf 2&\sf1&\sf4\\\sf-1&\sf-2&\sf0\end{array}\right)$

$\left|\begin{array}{ccc}\sf2&\sf4&\sf0\\\sf 2&\sf1&\sf4\\\sf-1&\sf-2&\sf0\end{array}\right|\left|\begin{array}{cc}\sf2&\sf4\\\sf2&\sf1\\\sf-1&\sf-2\end{array}\right|$

$\mathsf{ det\,(M)=[0+(-16)+0]-[0+(-16)+0]}$

$\mathsf{det\,(M)=[-16+0]-[-16+0] }$

$\mathsf{ det\,(M)=[-16]-[-16]}$

$\boxed{\boxed{\mathsf{det\,(M)=0}}}\leftarrow\textsf{letra D}$