Question

Calcule e obtenha o valor de X= A+A^t

Answer 1

Bem...''X'' é igual a:

$\left[\begin{array}{ccc}1&-1&0\\2&3&4\\0&1&-2\end{array}\right]$

+

$\left[\begin{array}{ccc}1&2&0\\-1&3&1\\0&4&-2\end{array}\right]$

= 

$\left[\begin{array}{ccc}2&1&0\\1&6&5\\0&5&-4\end{array}\right]$