Find S15 of the series : 2 + 5 + 10 + 17 + 26 + -. Question Find S15 of the series : 2 + 5 + 10 + 17 + 26 + ….. in progress 0 Math Sadie 1 month 2021-10-27T02:44:36+00:00 2021-10-27T02:44:36+00:00 1 Answer 0 views 0

## Answers ( )

Step-by-step explanation:Given:2 + 5 + 10 + 17 + 26 + …..To find:S15Solution:To find the sum of first 15 terms of given series,first check the pattern of series

So,

general term of this series is

To find the sum of n terms of the series

Sum of 15 terms

## Sum of 15 terms of the series is 1255.

Hope it helps you.

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