Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Appendix B - Exercise Set: 61

Answer

$\frac{1}{z^7}$

Work Step by Step

Use the quotient rule and the definition of negative exponents. $\frac{z^{-8}}{z^{-1}}=z^{-8-(-1)}=z^{-7}=\frac{1}{z^7}$
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