If A = {1, 2, 3} and B = {3, 8}, then (A

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Target Exam

CUET

Subject

-- Mathematics - Section B1

Chapter

Relations and Functions

Question:

If A = {1, 2, 3} and B = {3, 8}, then (A ∪ B) × (A ∩ B) is

Options:

{(3, 1), (3, 2), (3,3), (3,8)}

{(1, 3), (2,3), (3,3), (8,3)}

{(1, 2), (2,2), (3,3), (8,8)}

{(8,3), (8,2), (8,1), (8,8)}

Correct Answer:

{(1, 3), (2,3), (3,3), (8,3)}

Explanation:

A = {1, 2, 3}, B = {3, 8}

A ∪ B = {1, 2, 3, 8}

A ∩ B = {3}

∴ (A ∪ B) × (A ∩ B) = {(1, 3), (2, 3), (3, 3), (8, 3)}

Hence (2) is the correct answer.