2
3
5
6
Which is a square matrix?
3
2
-5
19
-8 1
0 -3
6 78
5.6 7.8
o
2. 3 -8 0
-5 19 0 0
5 8 6 0
och
0
0 -6 -18
1
-4
0
3.5
0 -20
7
8
16 18.5
4 -0.4
0
180-2