dadas as matrizes A= 2 1 b = 0 -1 C = 3 0
-3 4 2 5 6 1

calcule

1) A - B

2) A - Bt - C

Anônimo: nao entendi as matrizes, seria A = 21 / -3 4, b = 0 -1 / 2 5, c = 3 0 / 6 1 ??

perguntador2823: isso

perguntador2823: mil perdões, o aplicativo bugou as matrizes na hora que postei, mas é exatamente como você perguntou

Anônimo: ok!

Respostas

respondido por: Anônimo

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:

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