Finite Math and Applied Calculus (6th Edition)

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

Chapter 14 - Section 14.1 - Integration by Parts - Exercises - Page 1022: 18

Answer

$\ln |x-1|-\dfrac{1}{x-1}+C$

Work Step by Step

We will solve the given integral by using u-substitution method. Let us consider that $u=x-1 \implies dx=du$ $\displaystyle \int \dfrac{x}{(x-1)^2} \ dx=\int \displaystyle \dfrac{u+1}{u^2} \ du$ or, $=\int \displaystyle (\dfrac{1}{u}+u^{-2}) \ du$ or, $= \ln |u|-\dfrac{1}{u}+C$ Now, we will use back substitution $u=x-1$ Therefore, we have: $\displaystyle \int \dfrac{x}{(x-1)^2} \ dx=\ln |x-1|-\dfrac{1}{x-1}+C$
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