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If y=cos^(-1)(4sqrtx),"then "dy/dx=...

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

A

` (-2)/(sqrt(x-16x^(2)))`

B

` (-4)/(sqrt(x-16x^(2)))`

C

` (-1)/(2sqrt(x-16x^(2)))`

D

` (-1)/(sqrt(x-16x^(2)))`

Text Solution

Verified by Experts

The correct Answer is:
A
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