Question

Por favor alguem me ajude com estas atividades _MATRIZES

Answer 1

Resposta:

1)

a) $\left[\begin{array}{ccc}2&2\\2&4\end{array}\right]$

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

2)

a) $\left[\begin{array}{ccc}3&6\\5&0\end{array}\right]$

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

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

d) $\left[\begin{array}{ccc}5&6\\9&-6\end{array}\right]$

e) $\left[\begin{array}{ccc}8&2\\14&-8\end{array}\right]$

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

3)

a) $\left[\begin{array}{ccc}2&1&4\\-3&-1&-1\\1&-1&6\end{array}\right]$

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

c) $\left[\begin{array}{ccc}2&3&2\\1&1&-3\\7&-5&6\end{array}\right]$

d) $\left[\begin{array}{ccc}2&4&6\\-2&0&-4\\8&-6&10\end{array}\right]$

e) $\left[\begin{array}{ccc}-3&0&0\\0&-3&0\\0&0&-3\end{array}\right]$

f) Presumo que esteja errado, porém peguei a matriz da questão anterior para resolver: $\left[\begin{array}{ccc}6&12\\10&0\end{array}\right]$

4) $\left[\begin{array}{ccc}1&18\\-14&-19\end{array}\right]$