Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.2 - Trigonometric Functions: The Unit Circle - Concept and Vocabulary Check: 6

Answer

$\cos{t}$; $\sec{t}$; even

Work Step by Step

RECALL: (1) $\cos{(-a)} =\cos{a}$ (2) $\sec{(-a)} = \sec{a}$ (3) A function $f$ is even if $f(-x) = f(x)$. Thus, using the rules listed above, the missing expressions in the given statements are ( in order) : $\cos{t}$; $\sec{t}$; even
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.