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Let the set be A= {a, b, c, {a,b}} then which of the following is false?

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Let the set be A= {a, b, c, {a,b}} then which of the following is false?

(a) {a, b} Є A

(b) a Є A

(c) {a} Є A

(d) b, c ЄA

I had been asked this question in exam.

The origin of the question is Subsets topic in portion Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

1 Answer

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The correct answer is (c) {a} Є A

For explanation: Only elements belongs to a set, {a} is a subset of this set.

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