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 328: 12

Answer

We can sketch the vector $d$ and the vector $-e$ so that their initial points coincide. Then we can use another copy of the vector $d$ and the vector $-e$ to complete the parallelogram. The resultant vector through the middle of the parallelogram is the vector $d-e$.

Work Step by Step

To sketch the vector $d-e$, we can sketch the vector $d$ and the vector $-e$ (which points in the opposite direction from the vector $e$) so that their initial points coincide. Then we can use another copy of the vector $d$ and the vector $-e$ to complete the parallelogram. The resultant vector through the middle of the parallelogram is the vector $d-e$.
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