Calculus: Early Transcendentals 9th Edition

Published by Cengage Learning
ISBN 10: 1337613924
ISBN 13: 978-1-33761-392-7

Chapter 7 - Section 7.4 - Integration of Rational Functions by Partial Fractions. - 7.4 Exercises - Page 515: 16

Answer

$3t - 5\ln \left| {t + 1} \right| + C$

Work Step by Step

$$\eqalign{ & \int {\frac{{3t - 2}}{{t + 1}}} dt \cr & {\text{The integrand is an improper rational function}}{\text{, then the first }} \cr & {\text{step is apply the long division:}} \cr & \frac{{3t - 2}}{{t + 1}} = 3 - \frac{5}{{t + 1}} \cr & {\text{Therefore}}{\text{,}} \cr & \int {\frac{{3t - 2}}{{t + 1}}} dt = \int {\left( {3 - \frac{5}{{t + 1}}} \right)} dx \cr & = \int 3 dt - \int {\frac{5}{{t + 1}}} dt \cr & {\text{Integrating}} \cr & = 3t - 5\ln \left| {t + 1} \right| + C \cr} $$
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