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If a set is empty then number of subsets will be _________

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If a set is empty then number of subsets will be _________

(a) 1

(b) 2

(c) 0

(d) 4

The question was asked in final exam.

Question is taken from Subsets in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

1 Answer

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Best answer
Right answer is (a) 1

To explain I would say: The set has zero elements so 2^o = 1.

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