Answer
$x=arccos(y)-3$
Work Step by Step
$y=cos(x+3)$
Need to solve $x$ in order to find this use inverse trigonometric function.
$x+3=arccosy$
Hence, $x=arccos(y)-3$
Trigonometry (10th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
0321671775
ISBN 13:
978-0-32167-177-6
Chapter 6 - Inverse Circular Functions and Trigonometric Equations - Section 6.4 Equations Involving Inverse Trigonometric Functions - 6.4 Exercises - Page 279: 15
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