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Let Ai = {i, i+1, i+2, …..}. Then set {n, n+1, n+2, n+3, …..} is the _________ of the set Ai.

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Let Ai = {i, i+1, i+2, …..}. Then set {n, n+1, n+2, n+3, …..} is the _________ of the set Ai.

(a) Union

(b) Intersection

(c) Set Difference

(d) Disjoint

I had been asked this question in an interview.

Question is taken from Set Operations topic in section Basic Structures: Sets, Functions, Sequences, Sums and Matrices of Discrete Mathematics

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The correct answer is (b) Intersection

To explain: By the definition of the generalized intersection of the set.

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