Answer
$$\langle 13,31,-9 \rangle.$$
Work Step by Step
$$5\langle 2,2,-3 \rangle+3\langle 1,7,2 \rangle=\langle 10,10,-15 \rangle+\langle 3,21,6 \rangle\\
=\langle 13,31,-9 \rangle.$$
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 - 13.2 Vectors in Three Dimensions - Exercises - Page 659: 18
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