Question

If A{1,2 ,a,b} , find P(A)

Answer 1

Answer:

Given that:

A={a,{b}},

P(A)={ϕ,a,{b},{a,{b}}}

Answer 2

Answer:

A={1,{2,∅}}

The number of elements is A are 2

i.e,n=2

To find the no.of subsets of A.

P(A)=2ⁿ=2²=4

Thus,A would have 4 subsets