Question

Dadas as matrizes M = $\left[\begin{array}{ccc}-4&1&\\1&4&\\&&\end{array}\right]$
N = $\left[\begin{array}{ccc}1&4&\\-4&1&\\&&\end{array}\right]$
P = $\left[\begin{array}{ccc}2&3&\\1&-5&\\&&\end{array}\right]$
Calcule (M+N).P

Answer 1

$\left[\begin{array}{ccc}-4&1\\1&4\end{array}\right]- \left[\begin{array}{ccc}1&4\\-4&1\end{array}\right] = \left[\begin{array}{ccc}-5&-3\\5&3\end{array}\right]. \left[\begin{array}{ccc}2&3\\1&-5\end{array}\right] = \left[\begin{array}{ccc}-13&-6\\13&6\end{array}\right]$

Espero ter ajudado.