Answer
(a) $cos~38.9°=0.7782$
(b) $sec~79.3°=5.3860$
Work Step by Step
Select the degree (DEG) mode.
(a) $cos~38.9°=0.7782$
(b) $sec~79.3°=\frac{1}{cos~79.3°}=5.3860$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 6 - Review Exercises - Page 500: 33
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