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Homework Homework Assignment #31 Review Section 4.9 Page 292, Exercises: 1 – 41(EOO) Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Find the general antiderivative of f (x) and check your answer by differentiating. 1. f x 12 x f x 12 x F x 6 x 2 C F x 6 2 x 12 x f x checks Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Find the general antiderivative of f (x) and check your answer by differentiating. 5. f x 8 x 4 8 1 f x 8 x 4 F x 8 x 3 x 3 3 3 8 F x 3x 4 8 x 4 checks 3 Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Match the function with its antiderivative (a – d). a F x cos 1 x b F x cos x c 1 F x cos x 2 2 d F x sin x cos x 9. f x sin x f x sin x matches b , since F x sin x sin x Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Evaluate the indefinite integral. 13. x 1 dx x2 x 1 dx xdx dx 2 x C Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Evaluate the indefinite integral. 9 17. t 5 dt t 9 5 5 14 5 dt t C 14 Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Evaluate the indefinite integral. 21. 5t 9 dt 52 5t 9 dt 5tdt 9 dt 2t 9t C Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Evaluate the indefinite integral. 2 25. x 3 dx x 3 2 dx x 3 C 1 Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Evaluate the indefinite integral. 29. x x 1 dx 2 52 2 32 x x 1 dx x dx x dx x x C 5 3 3 2 1 2 Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Evaluate the indefinite integral. 33. 4sin x 3cos x dx 4sin x 3cos x dx 4 sin xdx 3 cos xdx 4 cos x 3sin x C Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Evaluate the indefinite integral. 37. cos 3 4t dt 1 cos 3 4t dt 4 sin 3 4t C Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework, Page 292 Evaluate the indefinite integral. 41. 25e5 x dx 5x 5x 5x 25 e dx 5 5 e dx 5 e C Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Differential Equations A differential equation is an equation in the form dy f x. dx For differential equations, we are able to find a specific antiderivative solution because we are provided an initial condition. That is, we are told y x0 y0 for some x0 . The following examples will demonstrate this process. Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Example, Page 292 Solve the differential equation with initial conditions. dy 48. x3 , y 0 2 dx Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Example, Page 292 Solve the differential equation with initial conditions. dy 50. 0, y 3 5 dt Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Example, Page 292 Solve the differential equation with initial conditions. dy 52. 8 x3 3 x 2 3, y 1 1 dx Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Example, Page 292 Solve the differential equation with initial conditions. dy 56. sin 2 z, y 4 dz 4 Rogawski Calculus Copyright © 2008 W. H. Freeman and Company Homework Homework Assignment #32 Review Section 4.9 Page 292, Exercises: 47 – 69(EOO) Quiz next time Work on Practice Final Exam Rogawski Calculus Copyright © 2008 W. H. Freeman and Company