Calculus: Early Transcendentals 8th Edition

Published by Cengage Learning
ISBN 10: 1285741552
ISBN 13: 978-1-28574-155-0

APPENDIX H - Complex Numbers - H Exercises: 6


$2 - i$

Work Step by Step

Step 1: Simplify what is inside of the conjugate expression: $2i(\frac{1}{2}- 1) = i - 2i^2$ Step 2: We remember that $i^2$ is equivalent to $-1$, so we simplify $i -2i^2$ to $i + 2$ Step 3: The conjugate of $i + 2$, by the laws of conjugates, is $2 - i$
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