Answer
(7, 0, -4)
Work Step by Step
$u−v+2w=(1,2,3)−(2,2,−1)+2\times(4,0,-4)$
$=(1,2,3)−(2,2,−1)+(8,0,-8)$
$=(1−2+8,2−2+0,3−(−1)-8)$
$=(7, 0, -4)$
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: 20
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