Answer
-90° +360°n
Work Step by Step
To find answer, you just need to add multiple (n) of 360 to find negative and positive coterminal angles. key: remember integer numbers (n) are positive and negative whole numbers.
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
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 9: 105
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