Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 5 - Section 5.2 - Trigonometric Functions of Real Numbers - 5.2 Exercises - Page 417: 14

Answer

$a.\qquad-1 \\$ $b. \qquad -\sqrt{2} \\$ $c. \qquad -1$

Work Step by Step

$ a. \displaystyle \qquad \tan(-\frac{\pi}{4})=\qquad$... even/odd properties, $=-\displaystyle \tan(\frac{\pi}{4})=\qquad$...table p.410... $=-1$ $ b. \displaystyle \qquad \csc(-\frac{\pi}{4})=\qquad$... even/odd properties, $=-\displaystyle \csc(\frac{\pi}{4})\qquad$...table p.410... $=-\sqrt{2}$ $ c. \displaystyle \qquad \cot(-\frac{\pi}{4})=\qquad$... even/odd properties, $=-\displaystyle \cot(\frac{\pi}{4})=\qquad$...table p.410... $=-1$
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.