Answer
$4$
Work Step by Step
RECALL:
$\begin{vmatrix} a & b \\ c & d \end{vmatrix}=ad-bc$
Use the definition above to obtain
$\begin{vmatrix} 6 & 5 \\ -2 & -1 \end{vmatrix}=6(-1)-5(-2)=-6+10=4$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 9 - Polar Coordinates; Vectors - 9.7 The Cross Product - 9.7 Assess Your Understanding - Page 631: 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.
