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If y = tan^(-1)((sin x)/(1+cos x)) find ...

If `y = tan^(-1)((sin x)/(1+cos x))` find `(dy)/(dx)`.

A

(1/4)

B

(1/2)

C

`1+cos^(2)x`

D

(-1/4)

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The correct Answer is:
B
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