Question

Ce alguém pode me ajudar tô aceitando​

Answer 1

Resposta:

1. $\left[\begin{array}{ccc}a1+1&a1-2&a1-3\\a2-1&a2+2&a2-3\\a3-1&a3-2&a3+3\end{array}\right]$      $\left[\begin{array}{ccc}2&-1&-2\\1&4&-1\\2&1&6\end{array}\right]$  

2).

a) $\left[\begin{array}{ccc}6&8\\11&0\end{array}\right]$

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

c) $\left[\begin{array}{ccc}12&9&3\\-6&12&6\\\end{array}\right]$

3.

x-1=4

x=5

y+y=-6

2y=-6

y=-3