Linear Differential Equations and Linear Operator Problem

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Homework Help Overview

The discussion revolves around a problem involving linear differential equations and linear operators, specifically focusing on a non-homogenous differential equation. Participants are attempting to understand how to approach the problem and apply the relevant equations provided in the question.

Discussion Character

  • Exploratory, Assumption checking, Problem interpretation

Approaches and Questions Raised

  • Participants express uncertainty about how to start the problem, with one suggesting the use of a linear combination of solutions to match the non-homogenous term. Another participant attempts to apply the linear operator to the combination of solutions but encounters difficulties in finding the correct constants.

Discussion Status

The discussion is ongoing, with participants exploring different interpretations of the problem. Some guidance has been offered regarding the correct application of linear combinations, but there is no consensus on the correct approach or solution yet.

Contextual Notes

There is mention of a correction made by one participant regarding their understanding of the problem setup. Additionally, the original poster indicates a lack of clarity on the question itself, which may affect their ability to proceed.

whitegirlandrew
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Homework Statement


I'm not sure how to approach this. The question involves linear operators and a non-homogenous differential equation.
Here is the question:
https://s15.postimg.org/cdmw80157/Capture.png

Homework Equations


They are given in the question

The Attempt at a Solution


I really have no idea on how to approach it. I was thinking something along the lines of setting c1*y1+c2*y2+c3*y3 as a linear combination and setting them equal to the non-homongenous term g(x). Then i can find the values of c1,c2,c3.
 
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whitegirlandrew said:

Homework Statement


I'm not sure how to approach this. The question involves linear operators and a non-homogenous differential equation.
Here is the question:
https://s15.postimg.org/cdmw80157/Capture.png

Homework Equations


They are given in the question

The Attempt at a Solution


I really have no idea on how to approach it. I was thinking something along the lines of setting c1*y1+c2*y2+c3*y3 as a linear combination and setting them equal to the non-homongenous term g(x). Then i can find the values of c1,c2,c3.

[Edited] You want to take a linear combination of the ##L(y_i)##'s (the right hand side of the equations) equal to ##g(x)##, not the ##y_i##'s themselves. Then use your constants to build the particular solution from the ##y_i##'s.
 
Last edited:
I did L(c1y1+c2y2+c3y3)=g(x)=c1*L(y1)+c2*L(y2)+c3*L(y3)
Then I sub in the L(y1), L(y2), and L(y3) for what was given to me. This leads me to find the constants. Then c1=10/12, c2=0, and c3=5/6.
However this was wrong.
 
whitegirlandrew said:
I did L(c1y1+c2y2+c3y3)=g(x)=c1*L(y1)+c2*L(y2)+c3*L(y3)
Then I sub in the L(y1), L(y2), and L(y3) for what was given to me. This leads me to find the constants. Then c1=10/12, c2=0, and c3=5/6.
However this was wrong.
I corrected my reply while you were looking at it. Sorry. See if it makes sense now.
 
Ah I see. I got the question wrong so I don't know the answer. I will try this once the solution comes out. Thanks for the help.
 

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