Q. 104.5( 4 Votes )

If A = <span lang

Answer :

We have, A = ϕ , i.e. A is a null set.


Then, n(A)= 0


n{P(A)} = 2m , where m = n(A)


n{P(A)} = 20 = 1.


Thus, P(A) has one element.


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