Question

Determine 2A +3B, sendo |1 0|
................................................ |5 2|
.................................................|-1 3|
e B = | -1 4|
.......... | 2 1|
.......... | 0 -1|

Answer 1

É ruim de montar as matrizes aqui mais vo tentar.

A=
| 1 0|
|5 2|
|-1 3|

2A=
|2 0|
|10 4|
|-2 6|

B=
|-1 4|
|2 1|
|0 -1|

3B=
|-3 12|
|6 3|
|0 -3|

2A+3B =

|-1 12|
|16 7|
|-2 3|

Espero ter ajudado!

Answer 2

Considere a s matrizes 

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

Determine a matriz M = 2A + 2B

$M=2 \left[\begin{array}{ccc}1&0\\5&2\\-1&3\end{array}\right] +3 \left[\begin{array}{ccc}-1&4\\2&1\\0&-1\end{array}\right] \\ \\ \\ M= \left[\begin{array}{ccc}2&0\\10&4\\-2&6\end{array}\right] + \left[\begin{array}{ccc}-3&12\\6&3\\0&-3\end{array}\right] \\ \\ \\ M= \left[\begin{array}{ccc}-1&12\\16&7\\-2&3\end{array}\right]$