Answer
The length of $ e\times f $ is $\frac{1}{2}$.
Work Step by Step
We have
$$\|e\times f\|=\|e\|\|f\| \sin \frac{\pi}{6}=(1)(1)(\frac{1}{2})=\frac{1}{2}.$$
Hence, the length of $ e\times f $ is $\frac{1}{2}$.
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 - 13.4 The Cross Product - Preliminary Questions - Page 676: 2
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.
