A = {3, {2}}

We have to find P(A) which is power set of A

The power set of set A is collection of all possible subsets of A

The possible subsets of A are {ϕ}, {3}, {{2}}, {3, {2}}

Hence the power set P(A) will be

P(A) = {{ϕ}, {3}, {{2}}, {3, {2}}}