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Post-UTME Mathematics 2019 Objective — Question 49

Question 49 of 50 from the Post-UTME Screening (Post-UTME) Mathematics 2019 Objective paper, with the correct answer and a full explanation.

Given that for sets A and B, in a universal set E, A ⊆ B then A ∩ (A ∩ B)' is

A. A
B. ∅Correct
C. B

Explanation

If A⊆B then A∩B=A, so (A∩B)'=A'; A∩A' = ∅ by definition.

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