Answer
$-100$
Work Step by Step
Let $A=\begin{vmatrix} 2 & 1 & -3\\ 5 & 0 & 1 \\ 2 & 6 & 0 \end{vmatrix}$, use the bottom row to expand, we have:
$|A|=2[1(1)-3(0)]-6[2(1)+3(5)]+0=2[1]-6[17]=-100$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 10 - Systems of Equations and Inequalities - Chapter Review - Review Exercises - Page 815: 28
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