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: 4b



Work Step by Step

Ensuring that the calculator is in degree mode, we enter $\sec^{-1} (1.0840880)$ as $\cos^{-1} (\frac{1}{1.0840880})$ into the calculator and solve to the nearest hundred: $\cos^{-1} (\frac{1}{1.0840880})\approx22.72^{\circ}$
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