Answer
$(12,-16)$
$(-12,16)$
Work Step by Step
We are given:
$u=(3,-4)$
$v=(1,1)$
$w=(-1,0)$
Determine two vectors having 4 times the magnitude of $\overrightarrow{u}$:
$4u=4(3,-4)=(12,-16)$
$4(-u)=4(-3,4)=(-12,16)$
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 11 - Vectors and Vector-Valued Functions - 11.1 Vectors in the Plane - 11.1 Exercises - Page 768: 38
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