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If y = cos^(-1) [(x+sqrt(1-x^(2)))/(sqrt...

If y = `cos^(-1) [(x+sqrt(1-x^(2)))/(sqrt(2))]` then `(dy)/(dx) ` =

A

`(1)/(sqrt(1-x^(2)))`

B

`(-2x)/((-xsqrt(1-x^(2)))^(2))`

C

`(4x^(2))/(x+sqrt(1-x^(2)))`

D

`2sqrt(1-x^(2))`

Text Solution

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The correct Answer is:
C
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