## The sum of n terms of an A.P. is 3n 2 +5n. Find the A.P. Hence, find its 16th term

Question

The sum of n terms of an A.P. is 3n 2 +5n. Find the A.P. Hence, find its 16th term

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1 month 2021-08-17T16:41:04+00:00 1 Answer 0 views 0

## Answers ( )

1. Answer:S1=8,S2=22,S3=42

Therefore the series is

8+14+20+………..

a=8,d=6,Tn=a+(n-1)d

T16=8+90=98