Answer
$|x^2-4|$
The domain is: $\mathbb{R}$
Work Step by Step
We know that $f(x)=|x|$ and $g(x)=x^2-4$, so:
$f \circ g=f(g(x))=f(x^2-4)=|x^2-4|$
The domain is: $\mathbb{R}$
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 1 - Functions - 1.1 Review of Functions - 1.1 Exercises - Page 10: 41
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