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Answer: a. Find the solution u( x, y) of Laplaces equation in the rectangle 0 < x < a, 0

Elementary Differential Equations and Boundary Value Problems | 11th Edition | ISBN: 9781119256007 | Authors: Boyce, Diprima, Meade ISBN: 9781119256007 392

Solution for problem 1 Chapter 10.8

Elementary Differential Equations and Boundary Value Problems | 11th Edition

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Elementary Differential Equations and Boundary Value Problems | 11th Edition | ISBN: 9781119256007 | Authors: Boyce, Diprima, Meade

Elementary Differential Equations and Boundary Value Problems | 11th Edition

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Problem 1

a. Find the solution u( x, y) of Laplaces equation in the rectangle 0 < x < a, 0 < y < b, that satisfies the boundary conditions u(0, y) = 0, u(a, y) = 0, 0 < y < b, u( x, 0) = 0, u( x, b) = g( x), 0 < x < a. b. Find the solution if g( x) = x, 0 x a/2, a x, a/2 x a. G c. For a = 3 and b = 1, plot u versus x for several values of y and also plot u versus y for several values of x. (Use enough terms in the Fourier series to accurately approximate the nonhomogeneous boundary condition.) G d. Plot u versus both x and y in three dimensions. Also draw a contour plot showing several level curves of u( x, y) in the xyplane.

Step-by-Step Solution:
Step 1 of 3

L1 - 3 2 1 2 3 2 − 2 2x(1 − x ) 3+ 3x (1 − x ) 3 ex. a) Simplify: 2 2 (1 − x ) 3 2 1/3 2 3 2 −2/3 2x(1 − x ) + 3x (1 − x ) b) Solve for x: 2 2/3 =0 (1 − x )

Step 2 of 3

Chapter 10.8, Problem 1 is Solved
Step 3 of 3

Textbook: Elementary Differential Equations and Boundary Value Problems
Edition: 11
Author: Boyce, Diprima, Meade
ISBN: 9781119256007

This full solution covers the following key subjects: . This expansive textbook survival guide covers 75 chapters, and 1655 solutions. This textbook survival guide was created for the textbook: Elementary Differential Equations and Boundary Value Problems, edition: 11. Since the solution to 1 from 10.8 chapter was answered, more than 214 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 1 from chapter: 10.8 was answered by , our top Math solution expert on 03/13/18, 08:17PM. The answer to “a. Find the solution u( x, y) of Laplaces equation in the rectangle 0 < x < a, 0 < y < b, that satisfies the boundary conditions u(0, y) = 0, u(a, y) = 0, 0 < y < b, u( x, 0) = 0, u( x, b) = g( x), 0 < x < a. b. Find the solution if g( x) = x, 0 x a/2, a x, a/2 x a. G c. For a = 3 and b = 1, plot u versus x for several values of y and also plot u versus y for several values of x. (Use enough terms in the Fourier series to accurately approximate the nonhomogeneous boundary condition.) G d. Plot u versus both x and y in three dimensions. Also draw a contour plot showing several level curves of u( x, y) in the xyplane.” is broken down into a number of easy to follow steps, and 146 words. Elementary Differential Equations and Boundary Value Problems was written by and is associated to the ISBN: 9781119256007.

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Answer: a. Find the solution u( x, y) of Laplaces equation in the rectangle 0 < x < a, 0