Answer
$\frac{7}{4}\pi$
Work Step by Step
$315^\circ \longrightarrow \frac{315}{180}\pi=\frac{7}{4}\pi$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 7 - Analytic Trigonometry - 7.2 The Inverse Trigonometric Functions (Continued) - 7.2 Assess Your Understanding - Page 459: 89
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