Answer
$-i$
Work Step by Step
We simplify using power rules:
$i^{23}$
$i^{22+1}$
$i^{22}* i^1$
$(i^{2})^{11}* i$
We know that $i^2=-1$ (since $i=\sqrt{-1}$):
$(-1)^{11}i$
$-1*i$
$-i$
College Algebra (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0321979478
ISBN 13:
978-0-32197-947-6
Chapter 1 - Section 1.3 - Complex Numbers; Quadratic Equations in the Complex Number System - 1.3 Assess Your Understanding - Page 112: 35
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