Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 5 - Trigonometric Functions - 5.1 Angles - 5.1 Exercises - Page 504: 70

Answer

$-25^{\circ}29'06''$

Work Step by Step

$-25.485^{\circ}=-(25^{\circ}+0.485^{\circ})$ $=-(25^{\circ}+0.485(60'))$ $=-(25^{\circ}+29.1')$ $=-(25^{\circ}+29'+0.1')$ $=-(25^{\circ}+29'+0.1(60''))$ $=-(25^{\circ}+29'+6'')$ $=-25^{\circ}29'06''$
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