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: 42


The identity is verified. $cos~θ~sec~θ=1$

Work Step by Step

Use: $sec~θ=\frac{1}{cos~θ}$ $cos~θ~sec~θ=cos~θ\frac{1}{cos~θ}=1$
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