Question

Me ajudem não sei responder essa questão

Answer 1

Resposta:

Explicação passo-a-passo:

$A = \left[\begin{array}{ccc}2&1&-3\\0&3&1\\2&-1&0\end{array}\right] X\left[\begin{array}{ccc}4&-4\\2&-2\\1&-1\end{array}\right] + \left[\begin{array}{ccc}-3&5\\-4&6\\8&-6\end{array}\right] +3X\left[\begin{array}{ccc}1&0\\2&1\\3&2\end{array}\right] =\\\\=\left[\begin{array}{ccc}8+2-3&-8-2+3\\0+6+1&0-6-1\\8-2+0&-8+2+0\end{array}\right] + \left[\begin{array}{ccc}-3&5\\-4&6\\8&-6\end{array}\right] +\left[\begin{array}{ccc}3&0\\6&3\\9&6\end{array}\right] =$

$=\left[\begin{array}{ccc}7&-7\\7&-7\\6&-6\end{array}\right] + \left[\begin{array}{ccc}0&5\\2&9\\17&0\end{array}\right] =\left[\begin{array}{ccc}7&2\\9&2\\23&-6\end{array}\right]$