The sum of the first n positive integers is
MATHEMATICS
JAMB 2006
The sum of the first n positive integers is
- A. 1/2 n(n-1)
- B. n(n+1)
- C. n(n-1)
- D. 1/2 n(n+1)
Correct Answer: D. 1/2 n(n+1)
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