Algebra and Trigonometry 10th Edition

Published by Cengage Learning
ISBN 10: 9781337271172
ISBN 13: 978-1-33727-117-2

Chapter 8 - 8.3 - Vectors in the Plane - 8.3 Exercises - Page 588: 94b

Answer

$\lt 30 \sqrt 2, 30 \sqrt 2 \gt $

Work Step by Step

We are given that $||\overrightarrow{v_{w}}|| = 60$ and $ \theta = 45^{\circ}$ We know that $v_{w}=||v|| \lt \cos \theta , \sin \theta \gt $ Thus, $v_{w}=60 \lt \cos 45^{\circ} , \sin 45^{\circ} \gt \\=60 \lt \dfrac{\sqrt 2}{2}, \dfrac{\sqrt 2}{2} \gt \\= \lt 30 \sqrt 2, 30 \sqrt 2 \gt $
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