If f(x)=sinx+cosx, g(x)=x^(2)-1, then g{...

If `f(x)=sinx+cosx, g(x)=x^(2)-1`, then `g{f(x)}` is invertible in the domain

A

A) `[0,pi/2]`

B

B) `[-pi/4,pi/4]`

C

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

D

D) `[0,pi]`

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The correct Answer is:

B

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