The set of values of $x$ for which the expression $\frac{{\tan 3x - \tan 2x}}{{1 + \tan 3x\tan 2x}} = 1$, is
The set of values of $x$ for which the expression $\frac{{\tan 3x - \tan 2x}}{{1 + \tan 3x\tan 2x}} = 1$, is
- A
$\phi $
- B
$\frac{\pi }{4}$
- C
$\left\{ {n\pi + \frac{\pi }{4}:n = 1,\,2,\,3.....} \right\}$
- D
$\left\{ {2n\pi + \frac{\pi }{4}:n = 1,\,2,\,3.....} \right\}$
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