Question

Determinante de Matriz 3x3

Answer 1

Resposta:

$\textsf{Segue a resposta abaixo}$

Explicação passo-a-passo:

$\left[\begin{array}{ccc}\sf1&\sf-2&\sf-1\\\sf3&\sf2&\sf5\\\sf-4&\sf7&\sf3\end{array}\right]$

$\left[\begin{array}{ccc}\sf1&\sf-2&\sf-1\\\sf3&\sf2&\sf5\\\sf-4&\sf7&\sf3\end{array}\right]\left|\begin{array}{cc}\sf1&\sf-2\\\sf3&\sf2\\\sf-4&\sf7\end{array}\right|$

$\mathsf{det=[6+40+(-21)]-[-18+35+8] }$

$\mathsf{ det=[46+(-21)]-[17+8]}$

$\mathsf{det=[25]-[25] }$

$\boxed{\boxed{ \mathsf{det=0}} }$