Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 3 - Radian Measure and the Unit Circle - Section 3.3 The Unit Circle and Circular Functions - 3.3 Exercises - Page 117: 32

Answer

$-2.1291$

Work Step by Step

Step 1: sec$(-8.3429)$ is equal to the reciprocal of $cos (-8.3429)$. Step 2: Convert the calculator to radian mode. Step 3: Type $\frac{1}{cos (-8.3429)}$ into the calculator and press enter. Step 4: $\frac{1}{cos (-8.3429)}\approx-2.1291$
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