Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 10 - Section 10.7 - Complex Numbers - Vocabulary and Readiness Check: 14

Answer

$10i$

Work Step by Step

Step 1: $\sqrt (-100)$ Step 2: $\sqrt (-1\times100)$ Step 3: $\sqrt -1 \times \sqrt 100$ Step 4: Since $\sqrt -1=i$ and $\sqrt 100=10$, the expression becomes $i\times10$ Step 5: Simplifying, the final answer is $10i$
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