Answer
$\text{periodic}$
Work Step by Step
A function $f$ is $\underline{\text{periodic}}$ when there exists a positive real number $c$ such that $f(t+c)=f(t)$ for all $t$ in the domain of $f$.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 6 - 6.3 - Trigonometric Function of Any Angle - 6.3 Exercises - Page 453: 2
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