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Question: Answered & Verified by Expert
If a non-empty set A contains $n$ elements, then its power set contains how many elements?
MathematicsSets and RelationsNDANDA 2012 (Phase 2)
Options:
  • A $\mathrm{n}^{2}$
  • B $2^{n}$
  • C $2 n$
  • D $n+1$
Solution:
2101 Upvotes Verified Answer
The correct answer is: $2^{n}$
No. of elements in power set of $\mathrm{A}=2^{\mathrm{n}}$

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