Answer
The radical sign
Work Step by Step
The radical sign is used to denote the positive square root of a nonnegative number
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 6 - Section 6.4 - Calculator Explorations - Finding and Approximating Square Roots - Page 443: 3
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