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If cos 3 x + sin (2 x - (7 pi)/(6)) = - ...

If `cos 3 x + sin (2 x - (7 pi)/(6)) = - 2` then x is equal to `(k in Z)`

A

`(pi)/3(6k+1)`

B

`(pi)/3(6k-1)`

C

`(pi)/3(2k+1)`

D

`(pi)/3(2k-1)`

Text Solution

Verified by Experts

The correct Answer is:
D
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