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If y=f((2x-1)/(x^(2)+1)) and f^(')(x)=si...

If `y=f((2x-1)/(x^(2)+1))` and `f^(')(x)=sinx^(2)` then `dy//dx` at `x=0` is

A

`2cos1`

B

`2sin1`

C

`2`

D

`0`

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