Answer
Principal square
Work Step by Step
Look at the definition of the principal square root of a negative number on page 126. It is given by:
$$ \sqrt{-b} = i\sqrt{b}$$
where b is considered to be a positive constant.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 1 - 1.5 - Complex Numbers - 1.5 Exercises - Page 119: 5
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