How many elements has P (A), if A = Φ?

Asked by Pragya Singh | 11 months ago |  78

1 Answer

Solution :-

If A is a set with m elements

n (A) = m then n [P (A)] = 2m

If A = Φ we get n (A) = 0

n [P(A)] = 20 = 1

Therefore, P (A) has one element.

Answered by Abhisek | 11 months ago

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