S = {1, 2, 3, 4, 5, 6}, T = {2,4,5,7} and R = {1,4,
MATHEMATICS
WAEC 1993
S = {1, 2, 3, 4, 5, 6}, T = {2,4,5,7} and R = {1,4, 5}, and (S∩T) ∪ R
- A. {1, 4, 5}
- B. {2, 4, 5}
- C. {1, 2, 4, 5}
- D. {2, 3, 4, 5}
Correct Answer: C. {1, 2, 4, 5}
Explanation
S = {1, 2, 3, 4, 5, 6}; T = {2, 4, 5, 7}; R = {1, 4, 5}
(S∩T) ∪ R = {2, 4, 5} ∪ {1, 4, 5}
= {1, 2, 4, 5}
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