question_answer

If \[\frac{\tan \,3\theta -1}{\tan \,3\theta +1}=\sqrt{3}\], then the general value of \[\theta \] is

A)  \[\frac{n\pi }{3}-\frac{\pi }{12}\]       

B)  \[n\pi +\frac{7\pi }{12}\]        

C)  \[\frac{n\pi }{3}-\frac{7\pi }{36}\]     

D)  \[n\pi +\frac{\pi }{12}\]