Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Evaluate: 
dx, where n ∈ N.
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
Sol. We have,
dx
= 
= 
= 
= 
= 
= 
= 2 
+ 
= 
– 
+ n
= 
– 
+ n
= [2(n + 1) (2n + 1) – 9 (n + 1) + 6]
= 
[4n 2 + 6n + 2 –9n –9 + 6]
= 
[4n 2 – 3n –1]
= 
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