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If y=cos ^(-1) ((1)/( 3x-4x^(3))) ,then...

If ` y=cos ^(-1) ((1)/( 3x-4x^(3))) ,then (dy)/(dx) `

A

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

B

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

C

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

D

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

Text Solution

Verified by Experts

The correct Answer is:
D
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