## Precalculus (6th Edition) Blitzer

The given statement shows that the equation of $\tan 3x=1$ is indicates the value of $x=\frac{\pi }{4}+n\pi$. The computation is incorrect because the value of x is different as shown below: \begin{align} & \tan 3x=1=\tan \frac{\pi }{4} \\ & 3x=\frac{\pi }{4}+n\pi \\ & x=\frac{\pi }{12}+\frac{n\pi }{3} \\ \end{align}