Answer
Increasing on: $(0, \displaystyle \frac{\pi}{2}), (\displaystyle \frac{3\pi}{2}, 2\pi)$
Decreasing on: $(\displaystyle \frac{\pi}{2}, \frac{3\pi}{2})$
Work Step by Step
$f(x)=\sin x-1, 0$
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.