Question

find the adjoint of the following

Answer 1

1 -1 0 1 -1
2 3 -2 2 3
2 0 1 2 0. = eliminating 1st row & column
1 -1 0 1 -1
2 3 -2 2 3

3 -2 2. 3
0 1. 2. 0
-1. 0. 1. -1. = thus solving 4×4 matrix...
3. -2. 2. 3

3 1. 2
-6. 1. 2
-6 -2 5 < hence the ans ....