1.

The sum of the first n terms of the series 1/(sqrt(2) + sqrt(5)) + 1/(sqrt(5) + sqrt(8)) + 1/(sqrt(8) + sqrt(11)) +... is

Answer»

`1/3(SQRT(3N + 2) - sqrt(2))`
`sqrt(3n + 2) - sqrt(2)`
`sqrt(3n + 2) + sqrt(2)`
`1/3(sqrt(2) -sqrt(3n + 2))`

ANSWER :A


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