2. ## Re: ODE

Well, what did you get for the homogeneous solution?

3. ## Re: ODE

Which method(s) include in your course to find yp ?
undetermined coefficients deals only with exponentials, sines, cosines , polynomials or products of those.
you can not use UC when the right hand side contains tangent term.
Try Variation of Paramters or Reduction of Order Methods.
Let see your start for this problem?
We do not give full solutions here.

Pl

5. ## Re: ODE

Oops
Inverse Differential Operators can not be used for the tangent
Sorry I remove it from my 1st reply
Actually IDO can be applied for same types of function which can be solved by UC

Only variation of parameters and reduction of order can be used here.
(Theoretically you can do a series solution, but it will be crazy!)

6. ## Re: ODE

Originally Posted by General
Oops
Inverse Differential Operators can not be used for the tangent
Sorry I remove it from my 1st reply
Actually IDO can be applied for same types of function which can be solved by UC

Only variation of parameters and reduction of order can be used here.
(Theoretically you can do a series solution, but it will be crazy!)
You are right, but we are asked for the same, inverse operator, so, I confused, I can do the series solution and variation of parameters but couldn't inverse opearator.. Thanks ...

7. ## Re: ODE

You are welcome =)
It is impossible to solve it using IDOs
maybe it is sine or cosine instead of tan
take care

8. ## Re: ODE

Here I got the solution........