Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 6 - 6.2 - Right Triangle Trigonometry - 6.2 Exercises - Page 442: 53

Answer

(a) $θ=60°=\frac{\pi}{3}rad$ (b) $θ=45°=\frac{\pi}{4}rad$

Work Step by Step

Consult the table on page 436: (a) $sec~θ=2$ $\frac{1}{cos~θ}=2$ $cos~θ=\frac{1}{2}$ $θ=60°=\frac{\pi}{3}rad$ (b) $cot~θ=1$ $\frac{1}{tan~θ}=1$ $tan~θ=1$ $θ=45°=\frac{\pi}{4}rad$
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