Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 1 - Trigonometric Functions - Section 1.1 Angles - 1.1 Exercises - Page 8: 69

Answer

-18$^{\circ}$30'54"

Work Step by Step

1. -18$^{\circ}$ +-0.515(60)'=-18$^{\circ}$30.9' Ignore negative sign. Follow the same method by multiplying decimal part of degree by 60 to find in minutes 2. -18$^{\circ}$30' +- 0.9(60)"= -18$^{\circ}$30'54" By multiplying decimal part of minutes by (60) we find the seconds.
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