Question

if A = {1} and ∅ is null set . Find (a) P(P(A)) (b) P(P(P(∅)))

Answer 1

Step-by-step explanation:

No. of elements in A is 0.

Hence n(P(A))=20=1

P(A) has 1 element.

Hence n(P(P(A)))=21=2

P(P(A)) has 2 elements.

Hence n(P(P(P(A))))=22=4

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