Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 6 - Section 6.4 - Inverse Trigonometric Functions and Right Triangles - 6.4 Exercises - Page 506: 15

Answer

Undefined

Work Step by Step

Using calculator in radian mode- $\cos^{-1}$ → $3$ = Error i.e. $\cos^{-1}3 $ is undefined as it is out of domain of $\cos^{-1} $ as $3\gt1$
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