d/dx [cos^(-1) (4x^(3)/27-x)]=...

`d/dx [cos^(-1) (4x^(3)/27-x)]=`

A

`3/(sqrt(9-x^(2))`

B

`1/(sqrt(9-x^(2))`

C

`(-3)/(sqrt(9-x^(2))`

D

`(-1)/(sqrt(9-x^(2))`

Text Solution

Verified by Experts

The correct Answer is:

C

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