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If a set A has 3 elements then find the number of elements in power set of set A.(a) 1(b) 2(c) 8(d) 27The question was posed to me in an international level competition.The origin of the question is Power Sets in portion Sets of Mathematics – Class 11

Answer» CORRECT option is (c) 8

The BEST EXPLANATION: POWER set of set A is set of all subsets of set A. Set with m ELEMENTS has 2^m subsets. So, number of elements in power set of set A is 2^3=8.


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