Answer
$[ 1$ $3 ]$
$[ 1$ $5 ]$
(from left to right, 1, 3, 1, 5)
Work Step by Step
Because they are the same size, they can be added.
$2+-1=1, 6+-3=3$
$-5+6=1, 3+2=5$
Precalculus: Mathematics for Calculus, 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305071751
ISBN 13:
978-1-30507-175-9
Chapter 10 - Section 10.4 - The Algebra of Matrices - 10.4 Exercises - Page 720: 9
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