Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 7 - Trigonometric Identities and Equations - 7.1 Fundamental Identities - 7.1 Exercises: 42

Answer

D

Work Step by Step

$1+\sin ^{2}x=\dfrac {\sin ^{2}x}{\sin ^{2}x}+\sin ^{2}x=\dfrac {1-\cos ^{2}x}{\sin ^{2}x}+\sin ^{2}x=csc^{2}x-\cot ^{2}x+\sin ^{2}x\Rightarrow 42\rightarrow D$
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.