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If nA=3 and n...

Question

If n(A) = 3 and n(B) =4 then find the number of elements in the power set of A × B

A

64

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B

24

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C

8

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D

4096

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Solution

The correct option is D
4096

As n( A × B) = 12 and so n( P( A × B)) = 2¹² = 4096

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