How many elements has P(A), if A = ϕ ?
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Answer:
P(A) is the power set of set A.
Number of elemenst of P(A) = 2n
Where n is the number of elements of the set A.
Given A=ϕ
Then the numberv of elements of set A = 0
∴ Number of elements of P(A) = 2n
= 20
= 1
JAI SHREE KRISHNA
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