Respostas

2014-06-01T17:01:05-03:00
2014-06-01T17:30:12-03:00
[a11  a12]
[a21  a22]

aij = i-j
a11 = 1-1 = 0
a12 = 1-2 = -1
a21 = 2-1 = 1
a22 = 2-2 = 0

[0  -1]
[1   0]
1 5 1