Answer
$a\cdot 1=a$.
Work Step by Step
We know that multiplying a number by $1$ does not change it.
Thus, for any number $a$, $a\cdot 1=a$.
Elementary Technical Mathematics
by Nelson, Robert; Eren, Dale;
Published by
Brooks Cole
ISBN 10:
1285199197
ISBN 13:
978-1-28519-919-1
Chapter 5 - Review - Page 232: 1
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