Answer
a) $81$ degrees.
b) $379$ degrees.
c) $1$ degree.
Work Step by Step
a) 99 falls in the second quadrant. 180-99=81.
b) -199 falls in the second quadrant. 180-(-199)=379.
c) 359 falls in the fourth quadrant. 360-359=1.
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 6 - Section 6.3 - Trigonometric Functions of Angles - 6.3 Exercises - Page 498: 8
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