We have,

We have to find A^-1 and

Firstly, we find |A|

Expanding |A| along C₁, we get

= 2(0 – (-6)) – 3(0 – 6) + 2(1 – 0)

= 2(6) – 3(-6) + 2(1)

= 12 + 18 + 2

= 32

Now, we have to find adj A, and for that, we have to find co-factors:

Ans.