Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 7 - Applications of Trigonometry and Vectors - Section 7.4 Vectors, Operations, and the Dot Product - 7.4 Exercises - Page 329: 18

Answer

From the results of Exercise 15 and Exercise 16, we can see that $c+d=d+c$. Therefore, it appears that vector addition is commutative.

Work Step by Step

In Exercise 15, we sketched the vector $c+d$. In Exercise 16, we sketched the vector $d+c$. From the results of Exercise 15 and Exercise 16, we can see that $c+d=d+c$. Therefore, it appears that vector addition is commutative.
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