The domain of f(x)=cos^(-1)((2)/(2+sinx)...

The domain of `f(x)=cos^(-1)((2)/(2+sinx))` contained in `[0, 2pi]` is

A

`[0, pi/2]`

B

`[pi/2, pi]`

C

`[0, pi]`

D

`[ (-pi)/(2), pi/2]`

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The correct Answer is:

C

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