- #1
Rubik
- 97
- 0
I am trying to solve a problem along the lines of y'' + 2y' + y = e^(-x) (2 + 1/x^2).. The actual one I am trying to solve differs slightly.
I was trying to solve it using the method of variation of parameters.. However it is new to me and was too confusing.
So first I get:
y comlpiment = C1e^(-x) + C2xe^(-x)
Then do I solve
y'' + 2y' + y = 2e^(-x)
and
y'' + 2y' + y + e^(-x)/x^2
The only thing is with this method I stuggle to 'guess' the solution?
I was trying to solve it using the method of variation of parameters.. However it is new to me and was too confusing.
So first I get:
y comlpiment = C1e^(-x) + C2xe^(-x)
Then do I solve
y'' + 2y' + y = 2e^(-x)
and
y'' + 2y' + y + e^(-x)/x^2
The only thing is with this method I stuggle to 'guess' the solution?