ind the sum of n terms of :- 1/2*5+1/5*8+1/8*11+........

Let *S*_{n}* *be the sum of *n* terms of this series.

**Note:** Put the values of *n *to get the sum of* n *terms.

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ind the sum of n terms of :- 1/2*5+1/5*8+1/8*11+........

Let *S*_{n}* *be the sum of *n* terms of this series.

**Note:** Put the values of *n *to get the sum of* n *terms.

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