#### Answer

$x = \frac{5\pi}{4}$

#### Work Step by Step

The least positive number for which $y = cot~x$ is undefined is $\pi$
Let $x - \frac{\pi}{4} = \pi$
Then: $~~x = \frac{5\pi}{4}$

Published by
Pearson

ISBN 10:
978-0-13-421743-7

ISBN 13:
978-0-13421-743-7

$x = \frac{5\pi}{4}$

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.