Solve the ordinary differential equation
x2y'' - 3xy' + 3y = x3cosx
I am working on this question for 2 days and I coudn't get to the final result.
we have to use the power series to solve this question. so I substitute y= sum(n=0 to infi)Ckxk, and also for y' and y'' into the equation. also for the RHS too.
please help me to solve it.