Question

estarei no aguardo da resposta, desde já agradeço!​

Answer 1

Resposta:

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

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

C = $\left[\begin{array}{ccc}3&0\\6&1\end{array}\right]$

A)

$\left[\begin{array}{ccc}2&1\\-3&4\end{array}\right] - \left[\begin{array}{ccc}0&-1\\2&5\end{array}\right]\\\\\\= \left[\begin{array}{ccc}2&2\\-5&-1\end{array}\right]$

B)

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

Logo:

$\left[\begin{array}{ccc}2&1\\-3&4\end{array}\right] - \left[\begin{array}{ccc}0&2\\-1&5\end{array}\right] - \left[\begin{array}{ccc}3&0\\6&1\end{array}\right]\\\\\\= \left[\begin{array}{ccc}2&-1\\-2&-1\end{array}\right] - \left[\begin{array}{ccc}3&0\\6&1\end{array}\right]\\\\\\ = \left[\begin{array}{ccc}-1&-1\\-8&-2\end{array}\right]$