Answer
Even
Work Step by Step
$f(-x)=1+3(-x)^{2}-(-x)^{4}=1+3x^{2}-x^{4}=f(x)$
$\therefore f(x)$ is even.
Calculus: Early Transcendentals 8th Edition
by Stewart, James
Published by
Cengage Learning
ISBN 10:
1285741552
ISBN 13:
978-1-28574-155-0
Chapter 1 - Section 1.1 - Four Ways to Represent a Function - 1.1 Exercises - Page 23: 77
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