Question
Tue May 29, 2012 By: Vikrant
 

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

Expert Reply
Tue May 29, 2012

Dear Student,

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

So,

Regards,

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