Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10}

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Target Exam

CUET

Subject

Mathematics

Chapter

Sets

Question:

Let U = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10} and A = {1, 3, 5, 7, 9}. Find A′.

Options:

{2, 4, 6, 8}

{2, 3, 4, 6, 8, 10}

{2, 4, 6, 8, 10}

None of these

Correct Answer:

{2, 4, 6, 8, 10}

Explanation:

The correct answer is Option (3) → {2, 4, 6, 8, 10}

We note that 2, 4, 6, 8, 10 are the only elements of U which do not belong to A.

Hence A′ = {2, 4, 6, 8, 10}.