#### Answer

$\pm \sqrt {1-\cos ^{2}x}$

#### Work Step by Step

$\sin ^{2}x+\cos ^{2}x=1\Rightarrow \sin ^{2}x=1-\cos ^{2}x\Rightarrow \sin x=\pm \sqrt {1-\cos ^{2}x}$

Published by
Pearson

ISBN 10:
013421742X

ISBN 13:
978-0-13421-742-0

$\pm \sqrt {1-\cos ^{2}x}$

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.