Answer
$\sqrt {-17}$ is not a real number.
Work Step by Step
$\sqrt {-17}$ is not a real number because no real number multiplied by itself can give a negative number.
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Section 10.1 - Radical Expressions and Radical Functions - Exercise Set - Page 687: 101
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