Algebra and Trigonometry 10th Edition

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


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.
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