Answer
$=(6, 12,6)$
Work Step by Step
$2u+4v-w=2\times(1,2,3)=4\times(2,2,-1)-w$
$=(2,4,6)+(8,8,-4)-(4,0,-4)$
$=(2+8-4,4+8-0, 6-4-(-4))$
$=(6, 12,6)$
Elementary Linear Algebra 7th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
1-13311-087-8
ISBN 13:
978-1-13311-087-3
Chapter 4 - Vector Spaces - 4.1 Vectors in Rn - 4.1 Exercises - Page 153: 21
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