Fundamentals of Differential Equations and Boundary Value Problems
7th Edition
ISBN: 9780321977106
Author: Nagle, R. Kent
Publisher: Pearson Education, Limited
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Textbook Question
Chapter 10.6, Problem 19E
Derive the formal solution given in equation (22)-(24) to the vibrating membrane problem governed by the initial-boundary value problem (17)-(21).
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This is the fourth part of a four-part problem.
If the given solutions
ÿ₁ (t) =
- [²2²], 2(0)-[¹7¹].
form a fundamental set (i.e., linearly independent set) of solutions for the initial value problem
21-²
-21-2
y' =
- [22
12t¹+2t 27
2t ¹-2t 2
[²],
2t
| Ü‚ ÿ(5) — [34], t
=
t> 0,
impose the given initial condition and find the unique solution to the initial value problem for t> 0. If the given solutions do not form a fundamental set, enter NONE in all of the answer blanks
y(t) = (
d) By plotting the solution obtained in part (c) using any computer package, display the initial
particle concentration, the final (or steady state) particle concentration, and the particle
concentration at t = 3 and t = 25 i.e., the intermediate particle concentration.
For part (d), enclose together the coding of computer package
e) From the plot in (d), produce some plausible explanations on the intermediate particle
concentration with respect to its behaviour at the boundary conditions and also the
observations as t increases.
2) Consider the third-order linear equation
a" +x = 0
i) Solve the contour problem 2(0) = x'(0) = 0 e r(27) = 1.
ii) Solve the boundary problem r(0) = 0, x(27) = 1, x' (27) = 0.
Chapter 10 Solutions
Fundamentals of Differential Equations and Boundary Value Problems
Ch. 10.2 - In Problems 1-8, determine all the solutions, if...Ch. 10.2 - Prob. 2ECh. 10.2 - Prob. 3ECh. 10.2 - Prob. 4ECh. 10.2 - In Problems 1-8, determine all the solutions, if...Ch. 10.2 - Prob. 6ECh. 10.2 - In Problems 1-8, determine all the solutions, if...Ch. 10.2 - In Problems 1-8, determine all the solutions, if...Ch. 10.2 - In Problems 9-14, find the values of eigenvalues...Ch. 10.2 - In Problems 9-14, find the values of eigenvalues...
Ch. 10.2 - In Problems 9-14, find the values of eigenvalues...Ch. 10.2 - In Problems 9-14, find the values of eigenvalues...Ch. 10.2 - In Problems 9-14, find the values of eigenvalues...Ch. 10.2 - In Problems 9-14, find the values of eigenvalues...Ch. 10.2 - In Problems 15-18, solve the heat flow problem...Ch. 10.2 - In Problems 15-18, solve the heat flow problem...Ch. 10.2 - In Problems 15-18, solve the heat flow problem...Ch. 10.2 - In Problems 15-18, solve the heat flow problem...Ch. 10.2 - In Problems 19-22, solve the vibrating string...Ch. 10.2 - In Problems 19-22, solve the vibrating string...Ch. 10.2 - In problem 19-22, solve the vibrating string...Ch. 10.2 - In problem 19-22, solve the vibrating string...Ch. 10.2 - Find the formal solution to the heat flow problem...Ch. 10.2 - Find the formal solution to the vibrating string...Ch. 10.2 - Prob. 25ECh. 10.2 - Verify that un(x,t) given in equation 10 satisfies...Ch. 10.2 - Prob. 27ECh. 10.2 - In Problems 27-30, a partial differential equation...Ch. 10.2 - Prob. 29ECh. 10.2 - In Problems 27-30, a partial differential equation...Ch. 10.2 - For the PDE in Problem 27, assume that the...Ch. 10.2 - For the PDE in Problem 29, assume the following...Ch. 10.2 - Prob. 33ECh. 10.3 - In Problems 1 -6, determine whether the given...Ch. 10.3 - In Problems 1 -6, determine whether the given...Ch. 10.3 - In Problems 1 -6, determine whether the given...Ch. 10.3 - In Problems 1 -6, determine whether the given...Ch. 10.3 - In Problems 1 -6, determine whether the given...Ch. 10.3 - In Problems 1 -6, determine whether the given...Ch. 10.3 - 7. Prove the following properties: a. If f and g...Ch. 10.3 - Verify the formula 5. Hint: Use the identity...Ch. 10.3 - In Problems 9-16, compute the Fourier series for...Ch. 10.3 - In Problems 9-16, compute the Fourier series for...Ch. 10.3 - In Problems 9-16, compute the Fourier series for...Ch. 10.3 - In Problems 9-16, compute the Fourier series for...Ch. 10.3 - In Problems 9-16, compute the Fourier series for...Ch. 10.3 - In Problems 17 -24, determine the function to...Ch. 10.3 - In Problems 17 -24, determine the function to...Ch. 10.3 - In Problems 17 -24, determine the function to...Ch. 10.3 - In Problems 17 -24, determine the function to...Ch. 10.3 - In Problems 17 -24, determine the function to...Ch. 10.3 - In Problems 17 -24, determine the function to...Ch. 10.3 - In Problems 17 -24, determine the function to...Ch. 10.3 - In Problems 17 -24, determine the function to...Ch. 10.3 - 25. Find the functions represented by the series...Ch. 10.3 - Show that the set of functions...Ch. 10.3 - Find the orthogonal expansion generalized Fourier...Ch. 10.3 - a. Show that the function f(x)=x2 has the Fourier...Ch. 10.3 - In Section 8.8, it was shown that the Legendre...Ch. 10.3 - As in Problem 29, find the first three...Ch. 10.3 - The Hermite polynomial Hn(x) are orthogonal on the...Ch. 10.3 - The Chebyshev Tchebichef polynomials Tn(x) are...Ch. 10.3 - Let {fn(x)} be an orthogonal set of functions on...Ch. 10.3 - Norm. The norm of a function f is like the length...Ch. 10.3 - Prob. 35ECh. 10.3 - Complex Form of the Fourier Series. a. Using the...Ch. 10.3 - Prob. 37ECh. 10.3 - Prob. 38ECh. 10.3 - Prob. 39ECh. 10.4 - In Problems 1-4, determine a the -periodic...Ch. 10.4 - In Problem 1-4, determine a the -periodic...Ch. 10.4 - In Problems 1-4, determine a the -periodic...Ch. 10.4 - In Problem 1-4, determine a the -periodic...Ch. 10.4 - In Problems 5 -10, compute the Fourier sine series...Ch. 10.4 - In Problems 5 -10, compute the Fourier sine series...Ch. 10.4 - In Problems 5 -10, compute the Fourier sine series...Ch. 10.4 - In Problems 5 -10, compute the Fourier sine series...Ch. 10.4 - In Problems 5 -10, compute the Fourier sine series...Ch. 10.4 - In Problems 5 -10, compute the Fourier sine series...Ch. 10.4 - In Problems 11 -16, compute the Fourier cosine...Ch. 10.4 - In Problems 11 -16, compute the Fourier cosine...Ch. 10.4 - In Problems 11 -16, compute the Fourier cosine...Ch. 10.4 - In Problems 11 -16, compute the Fourier cosine...Ch. 10.4 - In Problems 11 -16, compute the Fourier cosine...Ch. 10.4 - In Problems 11 -16, compute the Fourier cosine...Ch. 10.4 - In Problems 17 -19, for the given f(x), find the...Ch. 10.4 - In Problems 17 -19, for the given f(x), find the...Ch. 10.4 - In Problems 17 -19, for the given f(x), find the...Ch. 10.5 - In Problems 1 -10, find a formal solution to the...Ch. 10.5 - In Problems 1 -10, find a formal solution to the...Ch. 10.5 - Prob. 3ECh. 10.5 - Prob. 4ECh. 10.5 - Prob. 5ECh. 10.5 - In Problems 1 -10, find a formal solution to the...Ch. 10.5 - In Problems 1 -10, find a formal solution to the...Ch. 10.5 - Prob. 8ECh. 10.5 - Prob. 9ECh. 10.5 - In Problems 1-10, find a formal solution to the...Ch. 10.5 - Prob. 11ECh. 10.5 - Prob. 12ECh. 10.5 - Find a formal solution to the initial boundary...Ch. 10.5 - Prob. 14ECh. 10.5 - In Problems 15-18, find a formal solution to the...Ch. 10.5 - In Problems 15-18, find a formal solution to the...Ch. 10.5 - In Problems 15-18, find a formal solution to the...Ch. 10.5 - Prob. 18ECh. 10.5 - Prob. 19ECh. 10.6 - In Problems 1 -4, find a formal solution to the...Ch. 10.6 - Prob. 2ECh. 10.6 - Prob. 3ECh. 10.6 - Prob. 4ECh. 10.6 - The Plucked String. A vibrating string is governed...Ch. 10.6 - Prob. 6ECh. 10.6 - Prob. 7ECh. 10.6 - In Problems 7 and 8, find a formal solution to the...Ch. 10.6 - If one end of a string is held fixed while the...Ch. 10.6 - Derive a formula for the solution to the following...Ch. 10.6 - Prob. 11ECh. 10.6 - Prob. 12ECh. 10.6 - Prob. 13ECh. 10.6 - Prob. 14ECh. 10.6 - In Problems 13 -18, find the solution to the...Ch. 10.6 - In Problems 13 -18, find the solution to the...Ch. 10.6 - In Problems 13 -18, find the solution to the...Ch. 10.6 - In Problems 13 -18, find the solution to the...Ch. 10.6 - Derive the formal solution given in equation 22-24...Ch. 10.7 - In Problems 1-5, find a formal solution to the...Ch. 10.7 - Prob. 3ECh. 10.7 - In Problems 1-5, find a formal solution to the...Ch. 10.7 - Prob. 6ECh. 10.7 - In Problem 7 and8, find a solution to the...Ch. 10.7 - In Problems 7 and 8, find a solution to the...Ch. 10.7 - Find a solution to the Neumann boundary value...Ch. 10.7 - Prob. 13ECh. 10.7 - Prob. 15ECh. 10.7 - Prob. 16ECh. 10.7 - Prob. 18ECh. 10.7 - Prob. 19ECh. 10.7 - Stability.Use the maximum principle to prove the...Ch. 10.7 - Prob. 21E
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- (a) Beginning with the general solution of the systemx' = -2y, y' = 2x , calculate x2 + y2 to show that the trajectories are circles. (b) Show similarly that the trajectories of the system x' = 1/2y, y' = -8x are ellipses with equations of the form 16x2 + y2 =C2.arrow_forwardThe boundary value problem y" + y + y = x, y' (1) = 1, y(2) = 2 is solved using central differences with step h = 0.5. After the equation and the left boundary conditions are discretized at x = 1, the values of y(1) and y(1.5) satisfy the equation y(1.5) + Ay(1) + B = 0. Determine A = and B = (enter exact values as a decimal).arrow_forwards). Consider the system 2 ²¹1) (3). - (a) Plot the solution curve passing through the point (*)-(6). = (b) Express the curve in the form y = F(x, y). [Hint: an integrating factor is (x² + y²)p.] (3)' = ( -2arrow_forward
- As a specific example we consider the non-homogeneous problem y" + 25y = sec² (5x) (1) The general solution of the homogeneous problem (called the complementary solution, = Yc = ay₁ + by2 ) is given in terms of a pair of linearly independent solutions, y₁, Y2. Here a and bare arbitrary constants. Find a fundamental set for y" + 25y = 0 and enter your results as a comma separated list cos(5x), sin(5x) * BEWARE Notice that the above set does not require you to decide which function is to be called y₁ or y2 and normally the order you name them is irrelevant. But for the method of variation of parameters an order must be chosen and you need to stick to that order. In order to more easily allow WeBWork to grade your work I have selected a particular order for y₁ and y2. In order to ascertain the order you need to use please enter a choice for y₁ -5sin(5x) and if your answer is marked as incorrect simply enter the other function from the complementary set. Once you get this box marked as…arrow_forwarda. Find the most general real-valued solution to the linear system of differential equations a x₁(t) T2(t) = C1 6(sqrt(-1))*e^((-4+6(s e^((-4+6(sqrt(-1)))t) b. In the phase plane, this system is best described as a source / unstable node sink / stable node saddle center point / ellipses spiral source spiral sink none of these 1 + c₂ [1 -36 -6(sqrt(-1))*e^((-4-6(: 1e^((-4-6(sqrt(-1)))t)arrow_forward1. equation is type of Homogeneous & linear, Separable & homogenous or Linear & separablearrow_forward
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