Question

If A=\ phi,\ phi, phi, phi\ ,\ phi\ ,\ \ \ \ \ then n(P(A))=^ * ?
(A)1 (C)4 (B)2 (D) 16 (options)​

Answer 1

Answer:

If ϕdenotes null set then P(P(P(ϕ)))is- Hint: A set which has no element is called an empty set; it is denoted by ϕ. The collection of all the subsets of a set is called power set.