Mathematics · Arithmetic Progression
The sum of 'n' terms of an Arithmetic Progression (A.P.) whose n th term is given by 2n − 5, is:
- 1n(3n − 5)
- 2n(2 − 3n)
- 3n(3n − 14)
- 4n(n − 4)✓
Correct answer
n(n − 4)
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