Calculus 8th Edition

Published by Cengage
ISBN 10: 1285740629
ISBN 13: 978-1-28574-062-1

Chapter 3 - Applications of Differentiation - 3.9 Antiderivatives - 3.9 Exercises - Page 282: 3

Answer

$$F(x)=\frac{1}{2}x^4-\frac{2}{9}x^3+\frac{5}{2}x^2+C$$

Work Step by Step

Given $$f(x) =2x^3-\frac{2}{3}x^2+5x$$ Then by using if $f(x)=x^{\alpha}\ \to\ \ F(x) = \frac{x^{\alpha+1}}{\alpha+1}+C$ \begin{align*} F(x) &=\frac{2x^4}{4}-\frac{2}{3}\frac{x^3}{3}+\frac{5}{2}x^2+C\\ &=\frac{1}{2}x^4-\frac{2}{9}x^3+\frac{5}{2}x^2+C \end{align*} To check \begin{align*} F'(x) &=2x^3-\frac{2}{3}x^2+5x\\ &=f(x) \end{align*}
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