Chapter 6.7, Problem 21E

To determine

To find: the value $\theta$ .

Answer to Problem 21E

  $n\pi$ , where n is an integer

Explanation of Solution

Given information:

  $\tan \theta =0$

Calculation:

Solve the value of $\theta$ as follows:

  $\begin{array}{c}\tan \theta =0\\ \tan \left(n\pi \right)=0\left[\because \tan n\pi =0\right]\\ \theta =n\pi \left[\text{where }n\text{ is an interger}\right]\end{array}$

Thus the value of $\theta$ is $n\pi$ where n is an integer.