Answer
$\{x|x\ne k\pi+\frac{\pi}{2}\}$
Work Step by Step
By examining the graph of a tangent function, we can identify the domain as $\{x|x\ne k\pi+\frac{\pi}{2}\}$ where $k$ is an integer.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.