Answer
$ \frac{1}{2}$
Work Step by Step
$\frac{\sqrt {-10}}{\sqrt {-40}} = \sqrt {\frac{-10}{-40}} = \sqrt {\frac{1}{4}} = \frac{1}{2}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 1 - Equations and Inequalities - 1.3 Complex Numbers - 1.3 Exercises - Page 112: 37
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