JAMB Mathematics 2009 Objective — Question 10
Question 10 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2009 Objective paper, with the correct answer and a full explanation.
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If x = {n^2 + 1 : n is a positive integer and 1<=n<=5}, y = {5n : n is a positive integer and 1<=n<=5}, find x intersect y
- A. {5, 10}Correct
- B. {5, 10, 15}
- C. {2, 10}
- D. {5, 10, 15, 20}
Explanation
X={2,5,10,17,26}. Y={5,10,15,20,25}. X intersect Y = {5,10}.
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