What is the Solution for Undetermined Coefficients of y''+y'+y=(1-e^-t)?

[kraigandrews]

Homework Statement

I am stuck on this and just need to know the form of the solution for undetermined coeffecients of y''+y'+y=(1-e^-t)

my guess is A-Ae^-t but I am not sure

 

[Hurkyl]

Homework Statement

I am stuck on this and just need to know the form of the solution for undetermined coeffecients of y''+y'+y=(1-e^-t)

my guess is A-Ae^-t but I am not sure

Well, what happened when you tried to work with your guess?

 

[kraigandrews]

it didnt work but i was just wondering if the 1 matters.