Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.2 - Exponents and Radicals - 1.2 Exercises: 32

Answer

a) $\frac{1}{y^3}$ b) $\frac{1}{z^2}$ c) $\frac{1}{y^3}$

Work Step by Step

a) $y^2$$y^{-5}$ = $y^{2-5}$ = $y^{-3}$ = $\frac{1}{y^3}$ b) $z^5$$z^{-3}$$z^{-4}$ = $z^{5-3-4}$ = $z^{-2}$ = $\frac{1}{z^2}$ c) $\frac{y^{7}y^{0}}{y^{10}}$ = $y^{7+0-10}$ = $y^{-3}$ = $\frac{1}{y^3}$
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