Answer
$\frac{7\pi}{6}$
Work Step by Step
To convert from degrees to radians, multiply the angle by $\frac{\pi}{180}$:
$210°\times\frac{\pi}{180}=\frac{7\pi}{6}$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Appendix D - Trigonometry - D Exercises - Page A32: 1
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