Answer
$ \frac{1}{z^{22}}$
Work Step by Step
$\frac{z^{-12}}{z^{10}} = z^{-12-10} = z^{-22} = \frac{1}{z^{22}}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Appendix A - Exercise Set - Page 975: 12
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