Answer
$-i$
Work Step by Step
$i^{3}$
Using basic exponent rules:
$=i^{2}\cdot i$
We use the fact that $i^2=-1$ (because $i=\sqrt{-1}$)
$=-1*i$
$=-i$
Calculus 8th Edition
by Stewart, James
Published by
Cengage
ISBN 10:
1285740629
ISBN 13:
978-1-28574-062-1
Appendix G - Complex Numbers - G Exercises - Page A55: 11
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