Answer
[13]
Work Step by Step
$[1\times9+3\times1+(-1)\times(-1)]=[9+3+1]=[13]$
Finite Math and Applied Calculus (6th Edition)
by Waner, Stefan; Costenoble, Steven
Published by
Brooks Cole
ISBN 10:
1133607705
ISBN 13:
978-1-13360-770-0
Chapter 4 - Section 4.2 - Matrix Multiplication - Exercises - Page 252: 1
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