If the sum of first n terms of a series is `2n^(2) + 3n`, find the series.

If the sum of the first n terms of the series

If the sum of first n terms of an A.P. series is n^(2) +2n, then the term of the series having value 201 is-

If the sum of the first n terms of a series be 5n^(2) + 2n , then its second term is

The sum of fIrst n terms of an A.P series is 26n-2n^2 . Find the fifth term.

If the sum of n tems of a series be 5n^(2)+3n find its nth term.Are the terms of this series in A.P.?

If the sum of the first n terms of series be 5n^(2)+2n , then its second term is

If the sum of the first n terms of series be 5n^(2)+2n , then its second term is

If the sum of n tems of a series be 5n^2+3n , find its nth term. Are the terms of this series in A.P.?

The sum of first n terms of a series is n^(2) + an + b . Show that b = 0 and the series is in A.P.