College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 6 - Matrices and Determinants - Exercise Set 6.5 - Page 653: 55


Please see step-by-step.

Work Step by Step

A second order determinant has two rows and two columns. To evaluate, find the difference of the products of diagonals. (Top left $\times$ bottom right) - (top right $\times$ bottom left), or, $\left|\begin{array}{ll} a & b\\ c & d \end{array}\right|=ad-bc$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.