Calculus 10th Edition

Published by Brooks Cole
ISBN 10: 1-28505-709-0
ISBN 13: 978-1-28505-709-5

Chapter 8 - Integration Techniques, L'Hopital's Rule, and Improper Integrals - Review Exercises - Page 580: 64

Answer

$$\frac{{5{e^6} + 1}}{9}$$

Work Step by Step

$$\eqalign{ & \int_0^2 {x{e^{3x}}dx} \cr & = \frac{1}{9}\int_0^2 {3x{e^{3x}}\left( 3 \right)dx} \cr & {\text{Integrate by tables, use }}\int {u{e^u}du} = \left( {u - 1} \right){e^u} + C \cr & \frac{1}{9}\int_0^2 {3x{e^{3x}}\left( 3 \right)dx} = \frac{1}{9}\left[ {\left( {3x - 1} \right){e^{3x}}} \right]_0^2 \cr & {\text{Evaluate}} \cr & \frac{1}{9}\left[ {\left( {3x - 1} \right){e^{3x}}} \right]_0^2 = \frac{1}{9}\left[ {\left( {3\left( 2 \right) - 1} \right){e^{3\left( 2 \right)}} - \left( {3\left( 0 \right) - 1} \right){e^{3\left( 0 \right)}}} \right] \cr & = \frac{1}{9}\left[ {5{e^6} + 1} \right] \cr & = \frac{{5{e^6} + 1}}{9} \cr} $$
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