Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 1 - Precalculus Review - 1.3 The Basic Classes of Functions - Exercises - Page 22: 1


$\{x: x \geq 0\}$

Work Step by Step

Since $ x^{1/4} $ is the $4^{th}$ root of $ x $ and it is impossible to take a number to the fourth power and produce a negative result, $ x $ must be positive and hence the domain of the function must be: $ 0< x < \infty $.
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