Answer
-6
Work Step by Step
We simplify using power rules:
$i^{6}-5$
$(i^{2})^{3}-5$
We use the fact that $i^2=-1$ (since $i=\sqrt{-1}$):
$(-1)^{3}-5$
$-1-5$
$-6$
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: 39
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