HCU MCA 2013 Paper

Question : 35 of 75

Marks: +1, -0

Let Φ denote an empty set. The power set of the empty set, is

Solution:

(b) We know that, the number of power set of any set having n elements =

2^n

.
Number of elements in a null set = 1
∴ Power set of a null set =

2^1

= 2
i.e., {Φ , {Φ}}

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