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(d)/(dx)(3cos((pi)/(6)+x^(@))-4cos^(3)((...

`(d)/(dx)(3cos((pi)/(6)+x^(@))-4cos^(3)((pi)/(6)+x^(@)))`=.......

A

`cos(3x^(@))`

B

`(pi)/(60)sin(3x^(@))`

C

`(pi)/(60)cos(3x^(@))`

D

`-(pi)/(60)sin(3x^@)`

Text Solution

Verified by Experts

The correct Answer is:
C
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