Multivariable Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 0-53849-787-4
ISBN 13: 978-0-53849-787-9

Chapter 13 - Vector Functions - 13.2 Exercises - Page 877: 35

Answer

$2\mathrm{i}-4\mathrm{j}+32\mathrm{k}$

Work Step by Step

Use the last boxed formula of this section: $\displaystyle \int_{0}^{2}(t\mathrm{i}-t^{3}\mathrm{j}+3t^{5}\mathrm{k})dt=(\int_{0}^{2}tdt)\mathrm{i}-(\int_{0}^{2}t^{3}dt)\mathrm{j}+(\int_{0}^{2}3t^{5}dt)\mathrm{k}$ $=[\displaystyle \frac{1}{2}t^{2}]_{0}^{2}\mathrm{i}-[\frac{1}{4}t^{4}]_{0}^{2}\mathrm{j}+[\frac{1}{2}t^{6}]_{0}^{2}\mathrm{k}$ $=\displaystyle \frac{1}{2}(4-0)\mathrm{i}-\frac{1}{4}(16-0)\mathrm{j}+\frac{1}{2}(64-0)\mathrm{k}$ $=2\mathrm{i}-4\mathrm{j}+32\mathrm{k}$
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