Question

alguém para me ajudar​

Answer 1

Resposta:

a) $\left[\begin{array}{cc}10&7\\16&1\end{array}\right]$

b) $\left[\begin{array}{cc}-3&-5\\-21&-11\end{array}\right]$

Explicação passo-a-passo:

a) $\left[\begin{array}{cc}-3&0\\1&2\end{array}\right] + \left[\begin{array}{cc}6&4\\-3&1 \end{array}\right] = \left[\begin{array}{ccc}3&4\\-2&3\end{array}\right] . \left[\begin{array}{cc}-2&1\\4&1\end{array}\right] = \left[\begin{array}{cc}10&7\\16&1\end{array}\right]$

b)$\left[\begin{array}{cc}-3&0\\1&2\end{array}\right] - \left[\begin{array}{cc}-2&1\\4&1\end{array}\right] = \left[\begin{array}{cc}-1&-1\\-3&1\end{array}\right] . \left[\begin{array}{cc}6&4\\-3&1\end{array}\right] = \left[\begin{array}{cc}-3&-5\\-21&-11\end{array}\right]$