Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 8 - Radical Functions - 8.5 Complex Numbers - 8.5 Exercises: 15

Answer

$3+4i$

Work Step by Step

$\sqrt 9+\sqrt {-16}$ =$3+\sqrt {-1\times16}$ =$3+(\sqrt {-1}\times\sqrt {16})$ =$3+(i\times\sqrt {16})$ =$3+(i\times4)$ =$3+4i$
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