Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 1 - Section 1.7 - Combinations of Functions; Composite Functions - Concept and Vocabulary Check: 2

Answer

negative

Work Step by Step

The square root of a negative number is an imaginary number, therefore real numbers that make the radicand of a square root negative have to be excluded from the function's domain. Thus, the missing expression in the given statement is negative.
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