Find the sum of n terms: 1 + 5 + 11 + 19 + 29 + .......................upto n terms.

Asked by Vikrant | 29th May, 2012, 06:14: PM

Expert Answer:

Dear Student,

On observing the series, we can note that the ith term can be written as

So,

Regards,

Topperlearning.com

Answered by  | 29th May, 2012, 09:06: PM

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