Answer
$3u+4v=-6i+13j$
Work Step by Step
We are given that the two vector equations for the vectors $v$ and $v$ as follows:
$v=-3i+7j$ and $u=2i-5j$
Now, $3u+4v=3(2i-5j)+4(-3i+7j)=(6-12)i+(-15+28)j$
Hence, $3u+4v=-6i+13j$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 6 - Section 6.6 - Vectors - Exercise Set - Page 782: 32
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