Answer
$y=2cos(\pi x)$
Work Step by Step
As $sex(\pi x)=\frac{1}{cos(\pi x)}$, we can first graph $y=2cos(\pi x)$ and then use the reciprocal property to obtain $y=2sec(\pi x)$. Thus the answer is $y=2cos(\pi x)$ .
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 4 - Section 4.6 - Graphs of Other Trigonometric Functions - Concept and Vocabulary Check - Page 609: 6
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