Answer
$$ v\times (u+v)= \langle -1,-1,0\rangle $$
Work Step by Step
$$ v\times (u+v)=v\times u+v\times v=-u\times v+0\\
=-\langle 1,1,0\rangle=\langle -1,-1,0\rangle $$
Calculus (3rd Edition)
by Rogawski, Jon; Adams, Colin
Published by
W. H. Freeman
ISBN 10:
1464125260
ISBN 13:
978-1-46412-526-3
Chapter 13 - Vector Geometry - 13.4 The Cross Product - Exercises - Page 677: 18
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