Variation of Parameters herupu

Click For Summary

Homework Help Overview

The problem involves solving a second-order differential equation using the method of Variation of Parameters. The original poster presents their attempts at finding a particular solution after determining the homogeneous solution.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • Participants discuss the original poster's calculations regarding the homogeneous solution and the Wronskian. There are questions about the correctness of the signs in the original poster's final answer.

Discussion Status

The discussion includes attempts to clarify the original poster's reasoning and calculations. Some participants express confusion over the language used in the posts, which may detract from the seriousness of the inquiry. There is no explicit consensus on the correctness of the solution presented.

Contextual Notes

Participants note the use of informal language and expressions that may not be appropriate for the academic context, which could affect the clarity of the discussion.

FHamster
Messages
8
Reaction score
0

Homework Statement


y'' + y' = 4t


Homework Equations



Use Variation of parameters!
Inline31.gif


The Attempt at a Solution



So I get homo of: c1 + c2 e^-(t)

From there I get a Wronskian of
-e^(-t)

Then I get variations 2t^2 and -4e^t(t-1)

Then get the answer of 2t^2 + 4t - 4

Btu its wrong :< uguu
 
Physics news on Phys.org
FHamster said:
Then get the answer of 2t^2 + 4t - 4

Check the signs.

ehild
 
derp
 
derp?
herupu?
uguu?

What language is this?
 
HallsofIvy said:
derp?
herupu?
uguu?

What language is this?

LOL! :smile: I couldn't resist clicking on the title.

FHamster, nobody is going to take your questions/problems seriously if you use weird words to accompany your academic ventures.
 
FHamster said:
derp

You mean my answer was stupid? Thank you.

ehild
 
weaboonese

I mean I derped
 
FHamster said:
So I get homo of: c1 + c2 e^-(t)

LOL he said homo(I am such a child)
 
sid9221 said:
LOL he said homo(I am such a child)

How did i miss that? :smile:
 
  • #10
FHamster,

We use English here. I tried to help you, could you answer something in normal English?

ehild
 
  • #11
ehild said:
FHamster,

We use English here. I tried to help you, could you answer something in normal English?

ehild

It was very helpful. Thank you.
 

Similar threads

Variation of parameter VS Undetermined Coefficients
  • · Replies 7 ·
Replies
7
Views
2K
Evaluate the given integrals - line integrals
  • · Replies 2 ·
Replies
2
Views
1K
Solve for the solution of the differential equation
  • · Replies 9 ·
Replies
9
Views
2K
Multivariable Arc Length Problem: Weird Form with Parameterization
  • · Replies 3 ·
Replies
3
Views
2K
Solving Systems of Inhomogeneous Linear ODEs
  • · Replies 3 ·
Replies
3
Views
2K
Solving differential equation (t^2-1)y''-6y=1
  • · Replies 2 ·
Replies
2
Views
1K
Solve 3rd order ode using variation of parameters
  • · Replies 2 ·
Replies
2
Views
6K
Fundamental solution for unbounded solution
  • · Replies 11 ·
Replies
11
Views
2K
Cauchy-Euler with x=e^t? Differential Equations (ODE)
  • · Replies 3 ·
Replies
3
Views
3K
A Wronskian- variation of Params Problem
  • · Replies 1 ·
Replies
1
Views
2K