Answer
$k= -2$
Work Step by Step
Two vectors $u$ and $v$ are perpendicular if $u \cdot v =0$.
That is:
$u \cdot v = 2+3k+4 = 6+3k= 0 \rightarrow k=-2$
Linear Algebra and Its Applications (5th Edition)
by Lay, David C.; Lay, Steven R.; McDonald, Judi J.
Published by
Pearson
ISBN 10:
032198238X
ISBN 13:
978-0-32198-238-4
Chapter 5 - Eigenvalues and Eigenvectors - 5.1 Exercises - Page 274: 9
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.
