Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 6 - Test - Page 293: 3b



Work Step by Step

RECALL : For $y=\tan^{-1}{(x)}$, $y$ must be in the interval $(-90^o, 90^o)$. Use a scientific calculator's inverse tangent function in degree mode to obtain: $\theta = \tan^{-1}{(-1)} \\\theta=-45^o$
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