Answer
a. $1^\circ$
b. $91^\circ$
Work Step by Step
Given $\theta=89^\circ$
a. Calculate the complement:
$90^\circ-\theta=90^\circ-89^\circ= 1^\circ$
b. Calculate the supplement:
$180^\circ-\theta=180^\circ-89^\circ= 91^\circ$
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 7: 18
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