Answer
$\tan 39.87$
Work Step by Step
$\dfrac {1-\cos 59.74}{\sin 59.74}=\dfrac {2\sin ^{2}\dfrac {59.74}{2}}{2\sin \dfrac {59.74}{2}\cos \dfrac {59.74}{2}}=\tan \dfrac {59.74}{2}=\tan 39.87$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 7 - Trigonometric Identities and Equations - 7.4 Double-Angle and Half-Angle Identities - 7.4 Exercises - Page 694: 71
Update this answer!
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.
