Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 2 - 2.7 - Inverse Functions - 2.7 Exercises - Page 229: 43


$f(x)=x\sqrt {x^2-9}$ has no inverse function.

Work Step by Step

It is possible to draw a horizontal line that intersects $f(x)$ in two points. For example: $y=2$ or $y=-2$
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