Answer
$$\theta=\pi.$$
Work Step by Step
\begin{align*}
\cos \theta &=\frac{v \cdot w}{\|v\|\|w\|}\\
&=\frac{-\|v\|\|w\|}{\|v\|\|w\|}\\
&=-1.
\end{align*}
That is $$\theta=\pi.$$
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 - 13.3 Dot Product and the Angle Between Two Vectors - Exercises - Page 666: 43
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
