Evaluate : underset(n to oo)lim (1)/(n...

Evaluate :
`underset(n to oo)lim (1)/(n)[sin (pi/(2n))+sin((2pi)/(2n))+sin((3pi)/(2n))+…+ sin((npi)/(2n))]`

Verified by Experts

The correct Answer is:

`(2)/(pi)`

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