Answer
$\sqrt 17$
Work Step by Step
$|4-i|=|4+(-i)|=\sqrt 4^2+1=\sqrt 17$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 4 Quadratic Functions and Factoring - 4.6 Perform Operations with Complex Numbers - Guided Practice for Examples 6 and 7 - Page 279: 15
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