Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.2 - Calculators and Trigonometric Functions of an Acute Angle - 2.2 Problem Set: 13

Answer

$ 59^{\circ} 43' $

Work Step by Step

$180^{\circ} $ - ($ 120^{\circ} 17') $ $180^{\circ} $ can also be written as $179^{\circ} 60' $ ( converting 1 degree to 60 minutes) therefore the problem becomes- $179^{\circ} 60' $ - $ 120^{\circ}17' $ $ 179^{\circ} 60' $ - $ 120^{\circ} 17' $ ________ $ 59^{\circ} 43' $ Answer is $ 59^{\circ} 43' $
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