Answer
$\cos47^{\circ}$
Work Step by Step
In $\cos\theta$, as $\theta$ becomes larger, $\cos\theta$ becomes smaller. Therefore smaller $\theta$ will yield a larger $\cos\theta$.
Hence, $\cos47^{\circ}$ is larger than $\cos48^{\circ}$.
Elementary Geometry for College Students (5th Edition)
by Alexander, Daniel C.; Koeberlein, Geralyn M.
Published by
Brooks Cole
ISBN 10:
1439047901
ISBN 13:
978-1-43904-790-3
Chapter 11 - Test - Page 534: 6b
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