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If y=cos^(-1)((2x)/(1+x^(2))), then (dy)...

If `y=cos^(-1)((2x)/(1+x^(2)))`, then `(dy)/(dx)` is equal to

A

`(-2)/(1 + x ^(2)) AA |x| gt 1`

B

`(1)/(1 + x ^(2)) AA -1 lt x lt 1`

C

`(-2)/(1 + x ^(2)) AA - oo lt x lt oo`

D

None of these

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The correct Answer is:
D
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MTG-WBJEE-DERIVATIVES -WB JEE PREVIOUS YEARS QUESTIONS
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