Question

Me ajudeeem é pra um trabalho!!​

Answer 1

Explicação passo-a-passo:

$A+B=\left[\begin{array}{ccc}0&1&-1\\2&3&7\end{array}\right] +\left[\begin{array}{ccc}1&-1&5\\0&1&9\end{array}\right] \\\\A+B=\left[\begin{array}{ccc}0+1&1+(-1)&-1+5\\2+0&3+1&7+9\end{array}\right]\\\\A+B=\left[\begin{array}{ccc}1&0&4\\2&4&16\end{array}\right]$

$A-B=\left[\begin{array}{ccc}0&1&-1\\2&3&7\end{array}\right] -\left[\begin{array}{ccc}1&-1&5\\0&1&9\end{array}\right]\\\\A-B=\left[\begin{array}{ccc}0-1&1-(-1)&-1-5\\2-0&3-1&7-9\end{array}\right]\\\\A-B=\left[\begin{array}{ccc}-1&2&-6\\2&2&-2\end{array}\right]$