Answer
$-\pi$
Work Step by Step
$\frac{-180\pi}{180}=-\pi$
Algebra 2 Common Core
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133186024
ISBN 13:
978-0-13318-602-4
Chapter 13 - Periodic Functions and Trigonometry - Mid-Chapter Quiz - Page 859: 5
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