Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.1 - Angles and Radian Measure - Exercise Set - Page 532: 48

Answer

Quadrant I
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Work Step by Step

$\frac{-7\pi}{4}$ radians It is a negative angle and obtained by rotating the terminal side clockwise $\frac{7\pi}{4}$ = $2\pi$ - $\frac{\pi}{4}$ radians. We use |$\frac{-7\pi}{4}$| or $\frac{7\pi}{4}$ to determine the rotation. So $\frac{-7\pi}{4}$ radians lies in quadrant I. Find the attachment.
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