The sum of {n} terms of the series 2^{2}+5^{2}+8^{2}+ . . . . . . is

Correct Answer is : (n2)(6n2+3n−1)

(\frac{ {n}}{2})(6 n^{2}-3 n-1)

(\frac{ {n}}{2})(6 {n}^{2}+3 {n}+1)

Sequence and Series

Question : 71 of 86

Marks: +1, -0

The sum of

{n}

terms of the series

2^{2}+5^{2}+8^{2}+

. . . . . .

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