Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 5 - Section 5.5 - Inverse Trigonometric Functions and Their Graphs - 5.5 Exercises - Page 445: 29



Work Step by Step

It is clear the answer will either be the number in the parentheses or it will be undefined. Keep it mind that whenever the value that we take to be inverted is greater than 1 or less than -1 for a sine or cosine function, the value overall isn't defined. Here the value is in the (-1,1) range so we are ok.
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