Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 7 - 7.2 - Verifying Trigonometric Identities - 7.2 Exercises - Page 520: 7

Answer

$-csc~u$

Work Step by Step

$csc(-u)=\frac{1}{sin(-u)}=\frac{1}{-sin~u}=-csc~u$
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