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If A = ϕ then find n{P(A)}. |
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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