Since you didn't show any work we have to start small.How to start with this question? I have no idea
Will get the first equation in (4)?Since you didn't show any work we have to start small.
Plug the summation form of the solution into the differential equation. What do you get?
-Dan
Are you asking me if that's the result or did you do the calculation and are not sure of it? Please be clear.Will get the first equation in (4)?
We can't help you with that unless you show us your calculation! Yes, you should get Equations 4.I did actually, but I'm not sure my calculation is correct or not