Question

If A={2,3,{4}} , then number of elements in P(A) is equal to: *
3
9
8
16

Answer 1

Answer:

8

Step-by-step explanation:

If set A has 'n' elements, then powerset of A will have 2ⁿ elements

Here A has 3 elements. So powerset of A or P(A) will have 2ⁿ elements

Here n = 3, so 2ⁿ = 2³ = 8

So P(A) has 8 elements

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