Answer
$a\cdot \frac{1}{a}=1$.
Work Step by Step
We know that multiplying a number by its reciprocal makes it equal to $1$.
Thus, for any number $a$ except 0, $a\cdot \frac{1}{a}=1$.
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: 3
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