Find the sum of n terms of the following series 3.8+6.11+9.14+............?

Asked by  | 6th Jul, 2008, 11:49: PM

Expert Answer:

3.8+6.11+9.14+....

nth term of this series is Tn=3n(3n+5) = 9n2+15n

thus, sum of n terms of this series is

  Tn = 9n2+15n

          =

Answered by  | 14th Jul, 2008, 03:50: PM

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