Question

If n(A) = 4, find n[P(A)]

Answer 1

Concept:

If A has m elements then P(A) has 2^m
elements.

That is if n(A) =m then n[P(A)] = 2^m

Given :
n(A) = 4

n[P(A)] = 2^4 = 16

I hope this answer helps you

Answer 2

It is given that n(A) = 4

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If number of elements in

Set A

[ cordinal Number of SetA n(A)]

is m , then number of elements

in powerset P( A ) = 2^m

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Here ,

n( A ) = 4

n[ P( A ) ] = 2⁴ = 16

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