Question

Alguem ajuda pfv??? É para amanhã

Answer 1

a)

$\left[\begin{array}{cc}8\\7\\2\end{array}\right] -\left[\begin{array}{cc}3\\6\\3\end{array}\right]=\left[\begin{array}{cc}8-3\\7-6\\2-3\end{array}\right]=\left[\begin{array}{cc}5\\1\\-1\end{array}\right]$

b)

$\left(\begin{array}{cc}2&3\\1&4\end{array}\right) -\left(\begin{array}{cc}0&2\\1&5\end{array}\right) =\left(\begin{array}{cc}2-0&3-2\\1-1&4-5\end{array}\right)=\left(\begin{array}{cc}2&1\\0&-1\end{array}\right)$

c)

$\left(\begin{array}{ccc}1&2&4\\6&3&10\end{array}\right) -\left(\begin{array}{ccc}0&1&2\\6&5&1\end{array}\right) =\left(\begin{array}{ccc}1-0&2-1&4-2\\6-6&3-5&10-1\end{array}\right)\\\\\\=\left(\begin{array}{ccc}1&1&2\\0&-2&9\end{array}\right)$

$\textrm{Considere dar }\star\star\star\star\star\textrm{ e marcar como melhor resposta.}$