Suppose u1(t) is a solution to the initial value problem y" + p(t)y' + q(t)y = 0, y(to) = Yo, y'(to) = vo, %3D %3D and u2(t) is a solution to y/" + p(t)y' + q(t)y = f(t), y(to) = 0, y (to) = 0. (2) %3D %3D %3D Show that y(t) = u1(t) + u2(t) is a solution to the original initial value problem (1). %3D
Suppose u1(t) is a solution to the initial value problem y" + p(t)y' + q(t)y = 0, y(to) = Yo, y'(to) = vo, %3D %3D and u2(t) is a solution to y/" + p(t)y' + q(t)y = f(t), y(to) = 0, y (to) = 0. (2) %3D %3D %3D Show that y(t) = u1(t) + u2(t) is a solution to the original initial value problem (1). %3D
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
Related questions
Question
![Problem 4 (Non-homogeneous Equations Redux). By now we are very familiar with a procedure for solving a linear, second-order initial value problem
\[
y'' + p(t)y' + q(t)y = f(t), \quad y(t_0) = y_0, \quad y'(t_0) = v_0.
\]
1. First, find the general solution to the associated homogeneous equation
\[
y'' + p(t)y' + q(t)y = 0.
\]
2. Find a particular solution to the non-homogeneous equation
\[
y'' + p(t)y' + q(t)y = f(t)
\]
and add it to the homogeneous solution.
3. Plug in the initial conditions to find the solution to the IVP.
There is actually another way we can proceed, and it allows us to plug the initial conditions into the homogeneous solution before finding the particular solution.
(a) Suppose \( u_1(t) \) is a solution to the initial value problem
\[
y'' + p(t)y' + q(t)y = 0, \quad y(t_0) = y_0, \quad y'(t_0) = v_0,
\]
and \( u_2(t) \) is a solution to
\[
y'' + p(t)y' + q(t)y = f(t), \quad y(t_0) = 0, \quad y'(t_0) = 0.
\]
Show that \( y(t) = u_1(t) + u_2(t) \) is a solution to the original initial value problem (1).
(b) Thanks to Variation of Parameters, we know that if \(\{y_1, y_2\}\) is a fundamental set of solutions to the associated homogeneous equation, then
\[
y_p(t) = v_1(t)y_1(t) + v_2(t)y_2(t)
\]
is a particular solution, where
\[
v_1(t) = - \int_{t_0}^{t} \frac{y_2(\tau)f(\tau)}{y_1(\tau)y_2'(\tau) - y_1'(\tau)y_2(\tau)} \, d\tau,
\quad v_2(t) = \int_{t_0}^{t}](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F3f0c8ec8-67d4-43a2-8c13-a70ac046cde5%2F728eface-6ff7-401a-9355-8a3a845eaf7a%2Fu8wzlzo.jpeg&w=3840&q=75)
Transcribed Image Text:Problem 4 (Non-homogeneous Equations Redux). By now we are very familiar with a procedure for solving a linear, second-order initial value problem
\[
y'' + p(t)y' + q(t)y = f(t), \quad y(t_0) = y_0, \quad y'(t_0) = v_0.
\]
1. First, find the general solution to the associated homogeneous equation
\[
y'' + p(t)y' + q(t)y = 0.
\]
2. Find a particular solution to the non-homogeneous equation
\[
y'' + p(t)y' + q(t)y = f(t)
\]
and add it to the homogeneous solution.
3. Plug in the initial conditions to find the solution to the IVP.
There is actually another way we can proceed, and it allows us to plug the initial conditions into the homogeneous solution before finding the particular solution.
(a) Suppose \( u_1(t) \) is a solution to the initial value problem
\[
y'' + p(t)y' + q(t)y = 0, \quad y(t_0) = y_0, \quad y'(t_0) = v_0,
\]
and \( u_2(t) \) is a solution to
\[
y'' + p(t)y' + q(t)y = f(t), \quad y(t_0) = 0, \quad y'(t_0) = 0.
\]
Show that \( y(t) = u_1(t) + u_2(t) \) is a solution to the original initial value problem (1).
(b) Thanks to Variation of Parameters, we know that if \(\{y_1, y_2\}\) is a fundamental set of solutions to the associated homogeneous equation, then
\[
y_p(t) = v_1(t)y_1(t) + v_2(t)y_2(t)
\]
is a particular solution, where
\[
v_1(t) = - \int_{t_0}^{t} \frac{y_2(\tau)f(\tau)}{y_1(\tau)y_2'(\tau) - y_1'(\tau)y_2(\tau)} \, d\tau,
\quad v_2(t) = \int_{t_0}^{t}
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 3 images

Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, advanced-math and related others by exploring similar questions and additional content below.Recommended textbooks for you

Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated

Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education

Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY

Advanced Engineering Mathematics
Advanced Math
ISBN:
9780470458365
Author:
Erwin Kreyszig
Publisher:
Wiley, John & Sons, Incorporated

Numerical Methods for Engineers
Advanced Math
ISBN:
9780073397924
Author:
Steven C. Chapra Dr., Raymond P. Canale
Publisher:
McGraw-Hill Education

Introductory Mathematics for Engineering Applicat…
Advanced Math
ISBN:
9781118141809
Author:
Nathan Klingbeil
Publisher:
WILEY

Mathematics For Machine Technology
Advanced Math
ISBN:
9781337798310
Author:
Peterson, John.
Publisher:
Cengage Learning,

