Question

Dadas as matrizes A e B a resposta de A- B, é:

A= $\left[\begin{array}{ccc}1&2\\5&4\\\end{array}\right]$



B=$\left[\begin{array}{ccc}-2&-2\\0&1\\\end{array}\right]$

Answer 1

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