Calculus: Early Transcendentals (2nd Edition)

Published by Pearson
ISBN 10: 0321947347
ISBN 13: 978-0-32194-734-5

Chapter 4 - Applications of the Derivative - Review Exercises - Page 332: 72

Answer

$$\frac{{{x^3}}}{3} + \frac{4}{{{x^{1/2}}}} - \frac{2}{x} + C$$

Work Step by Step

$$\eqalign{ & {\text{Find }}\int {\frac{{{x^4} - 2\sqrt x + 2}}{{{x^2}}}dx} \cr & {\text{distribute}} \cr & = \int {\left( {\frac{{{x^4}}}{{{x^2}}} - \frac{{2\sqrt x }}{{{x^2}}} + \frac{2}{{{x^2}}}} \right)dx} \cr & = \int {\left( {{x^2} - 2{x^{ - 3/2}} + 2{x^{ - 2}}} \right)dx} \cr & {\text{use }}\int {{x^n}} dx = \frac{{{x^{n + 1}}}}{{n + 1}} + C \cr & = \frac{{{x^{2 + 1}}}}{{2 + 1}} - 2\left( {\frac{{{x^{ - 3/2 + 1}}}}{{ - 3/2 + 1}}} \right) + 2\left( {\frac{{{x^{ - 2 + 1}}}}{{ - 2 + 1}}} \right) + C \cr & {\text{simplify}} \cr & = \frac{{{x^3}}}{3} - 2\left( {\frac{{{x^{ - 1/2}}}}{{ - 1/2}}} \right) + 2\left( {\frac{{{x^{ - 1}}}}{{ - 1}}} \right) + C \cr & = \frac{{{x^3}}}{3} + \frac{4}{{{x^{1/2}}}} - \frac{2}{x} + C \cr} $$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.