Answer
$\vec{0}$
Work Step by Step
$4[\vec{c}+ (2\vec{a}-\vec{c})-2 \vec{a}]=4[(\vec{c} +2\vec{a}-\vec{c}-2 \vec{a})]\\=4[(\vec{c}-\vec{c}) +(2\vec{a}-2 \vec{a})]\\= 4 (\vec{0}+\vec{0})\\=4 (\vec{0})\\=\vec{0}$
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 12 - Vectors and Matrices - Review Exercises and Problems for Chapter Twelve - Page 531: 8
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