Q. 3

If the sum of n terms of an AP is , then write its nth term.

Answer :

Here, Sn=2n2+3n

So, S1=2+3=5=t1

And S2=2×22+3×2


So, t2=S2-S1



Now, common difference of A.P. is given by




So, nth term of A.P. is





Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses