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Power set of empty set has exactly _________ subset.

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Power set of empty set has exactly _________ subset.

(a) One

(b) Two

(c) Zero

(d) Three

I have been asked this question during an interview.

My question is from Sets topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

1 Answer

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Best answer
The correct answer is (a) One

The best explanation: Power set of null set has exactly one subset which is empty set.

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