Algebra 2 (1st Edition)

Published by McDougal Littell
ISBN 10: 0618595414
ISBN 13: 978-0-61859-541-9

Chapter 14 Trigonometric Graphs, Identities, and Equations - Chapter Review - Page 966: 16


$\sin x$

Work Step by Step

Using the given identities: $-\cos x\tan (-x)=-\cos x\frac{\sin(-x)}{\cos(-x)}=-\cos x\frac{-\sin x}{\cos x}=\sin x$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.