Published by:
CGP EDU Academic Team
Published on: August 14, 2026
Sum to n terms of the series 
+….. is -
A
(n 2 + 9n + 14)
B
(2n 2 + 7n + 15)
C
(2n 2 + 9n + 13)
D
(n 2 + 11n + 12)
Text Solution
Verified by ExpertsThe correct answer is:
C
Let t r denote the rth term of the series, then
t r = 
= 
= 
(r + 1) 2 ⇒ 
= 
= 
= 
[2n
3 + 9n 2 + 13n + 6 – 6]
= 
(2n 2 + 9n + 13).
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