Let U = {1, 2, 3, 4}, P = {2, 3} and Q = {2,
MATHEMATICS
WAEC 1992
Let U = {1, 2, 3, 4}, P = {2, 3} and Q = {2, 4}. What is (P∩Q)'?
- A. (1, 2, 3)
- B. (1, 3, 4)
- C. (2, 3)
- D. (1, 3)
Correct Answer: B. (1, 3, 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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