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The value of 1+1/(1+2) + 1/(1+2+3) +….. ...

The value of `1+1/(1+2) + 1/(1+2+3)` +….. + `1/(1+2+3+…n) ` is equal to :

A

`(2n)/(n+1)`

B

`(3n)/(2n+1)`

C

`(4n)/(3n+1)`

D

none of these

Text Solution

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The correct Answer is:
A
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