Precalculus: Mathematics for Calculus, 7th Edition

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

Chapter 1 - Review - Concept Check - Page 132: 6

Answer

$a^ma^n=a^{m+n}$ $\frac{a^m}{a^n}=a^{m-n}$ $(a^m)^n=a^{mn}$ $(ab)^n=a^nb^n$ $(\frac{a}{b})^n=\frac{a^n}{b^n}$

Work Step by Step

$a^ma^n=a^{m+n}$ $2^3\times 2^4=2^{3+4}$ $8\times16=2^7$ $128=128$ $\frac{a^m}{a^n}=a^{m-n}$ $\frac{2^3}{2^4}=2^{3-4}$ $\frac{8}{16}=2^{-1}$ $\frac{1}{2}=\frac{1}{2}$ $(a^m)^n=a^{mn}$ $(2^3)^4=2^{3\times4}$ $8^4=2^{12}$ $4096=4096$ $(ab)^n=a^nb^n$ $(2\times3)^4=2^4\times3^4$ $6^4=16\times81$ $1296=1296$ $(\frac{a}{b})^n=\frac{a^n}{b^n}$ $(\frac{4}{2})^3=\frac{4^3}{2^3}$ $2^3=\frac{64}{8}$ $8=8$
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