Answer
$=-1$
Work Step by Step
Rewrite the expression out as $(-1)^{13}=(-1)^2(-1)^2(-1)^2(-1)^2(-1)^2(-1)^2(-1)$ Since all the $(-1)^2$ values turn to $1$ (since $-1\cdot-1=1$), the only remaining value is $1 \cdot (-1)=-1$.
Functions Modeling Change: A Preparation for Calculus, 5th Edition
by Connally, Eric; Hughes-Hallett, Deborah; Gleason, Andrew M.; Cheifetz, Phil C.
Published by
Wiley
ISBN 10:
1118583191
ISBN 13:
978-1-11858-319-7
Chapter 4 - Exponential Functions - Exercises to Skills for Chapter 4 - Page 185: 4
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