lim(xto1)(x+x^(4)+x^(9)+……….+x^(n^(2))-n...

`lim_(xto1)(x+x^(4)+x^(9)+……….+x^(n^(2))-n)/(x-1)` is

A

`(n(n+1)(n+2))/6`

B

`(n(n+1)(2n-1))/6`

C

`(n(n+1)(2n+1))/6`

D

`(n(n-1)(2n+1))/6`

Verified by Experts

The correct Answer is:

c

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