#### Answer

$\cos ^{2}\theta $

#### Work Step by Step

$\sin \theta \left( csc\theta -\sin \theta \right) =\sin \theta \left( \dfrac {1}{\sin \theta }-\sin \theta \right) =1-\sin ^{2}\theta =\cos ^{2}\theta $

Published by
Pearson

ISBN 10:
013421742X

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

$\cos ^{2}\theta $

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.