Answer
$D=\{x|x\geqslant 1\}= [1, \infty)$
Work Step by Step
$h(x)=\sqrt[4] {x^4-1}$,
To find the domain.
$\sqrt[4] {x^4-1}\geq0$
$ x^4\geq1$
$ x\geq1$.
Therefore the Domain is:
$D=\{x|x\geqslant 1\}= [1, \infty)$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 3, Polynomial and Rational Functions - Section 3.7 - Polynomial and Rational Inequalities - 3.7 Exercises - Page 352: 43
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