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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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