Finite Math and Applied Calculus (6th Edition)

Published by Brooks Cole
ISBN 10: 1133607705
ISBN 13: 978-1-13360-770-0

Chapter 13 - Section 13.1 - The Indefinite Integral - Exercises - Page 958: 28

Answer

$-\displaystyle \frac{10}{x^{0.1}} -\ln|x| +C$

Work Step by Step

$\displaystyle \int(\frac{1}{x^{1.1}}-\frac{1}{x})dx=$ The integral of a sum is the sum of the integrals. Also, write $\displaystyle \frac{1}{x^{n}}=x^{-n}$ =$\displaystyle \int(x^{-1.1}-x^{-1})dx$ $=\displaystyle \int x^{-1.1}dx-\int x^{-1}dx$ for $n=-1, \displaystyle \qquad \int x^{n}dx=\ln|x|+C$ for $n\neq-1,\quad \displaystyle \int x^{n}dx=\frac{x^{n+1}}{n+1}+C$ $=\displaystyle \frac{x^{-0.1}}{-0.1} -\ln|x| +C$ = $-\displaystyle \frac{10}{x^{0.1}} -\ln|x| +C$
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