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If (1 sin t)/(1 + t) dt = alpha, then th...

If `(1 sin t)/(1 + t) dt = alpha`, then that value of the integral :
`int_(4pi - 2)^(4pi) (sin t/2)/(4pi + 2 - t) dt` in terms of `alpha` is given by :

A

`2 alpha`

B

`-2 alpha`

C

`alpha`

D

`-alpha`

Text Solution

Verified by Experts

The correct Answer is:
D
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