1
2
3
4




2 1
1
2
2
3
5
2
0
1
−
−








Verify A (adj A) = (adj A) A = |A| I in Exercises 3 and 4
3 2
3
4
6
−
−




4 1
1
2
3
0
2
1
0
3
−
−








Find the inverse of each of the matrices (if it exists) given in Exercises 5 to 11