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: 49

Answer

$ 17^\circ01'49''$

Work Step by Step

$90^\circ-72^\circ58'11''=89^\circ59'60''-72^\circ58'11''=17^\circ01'49''$
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