Question

pfvrrrr essa gebtree​

Answer 1

Resposta:

$\left[\begin{array}{ccc}2&-2\\-2&8\end{array}\right]$

Explicação passo a passo:

Bom, para resolver, precisamos, primeiro definir At (que é a inversão da matriz):

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

Agora podemos calcular:

A + $A^{t}$

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

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

$\left[\begin{array}{ccc}2&-2\\-2&8\end{array}\right]$