## Precalculus (6th Edition)

Published by Pearson

# Chapter 7 - Trigonometric Identities and Equations - 7.1 Fundamental Identities - 7.1 Exercises - Page 658: 25

#### Answer

Equation is even.

#### Work Step by Step

$f\left( x\right) =\dfrac {\sin x}{x}\Rightarrow$ $f\left( -x\right) =\dfrac {\sin \left( -x\right) }{-x}=\dfrac {-\sin x}{-x}=\dfrac {\sin x}{x}\Rightarrow f\left( x\right) =f\left( -x\right)$ So the equation is even.

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