Respostas

2014-08-26T15:50:51-03:00
 A= \left[\begin{array}{ccc}1&2\\5&4\\\end{array}\right] e \\B=\left[\begin{array}{ccc}-2&-2\\0&1\\\end{array}\right]\\A-B=  \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]  :.
4 4 4
Disponha! Nao esquece de Avaliar =)