The general solution of the trigonometric equation $tan\, x + tan \,2x + tan\, 3x = tan \,x · tan\, 2x · tan \,3x$ is
The general solution of the trigonometric equation $tan\, x + tan \,2x + tan\, 3x = tan \,x · tan\, 2x · tan \,3x$ is
- A
$x = n\pi$
- B
$n\pi ± \frac{\pi }{3}$
- C
$x = 2n\pi$
- D
$x = \frac{{n\pi }}{3}$ where $n \in I$
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