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WAEC - Mathematics (1992 - No. 1)

Let U = {1, 2, 3, 4}, P = {2, 3} and Q = {2, 4}. What is (P∩Q)'?
(1, 2, 3)
(1, 3, 4)
(2, 3)
(1, 3)
(1, 4)

Explanation

U = {1,2,3,4}; P = {2,3}; Q = {2,4}; P∩Q = {2}
(P∩Q)' = {1,3,4}

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