MHB Math Helper
- Jan 29, 2012
I quote an unsolved question posted in MHF (November 7th, 2012) by user NumberMunhcer.
hi, this should be pretty straight forward problem to solve but im stuck anyway: y''' + 9y' = 18sin(3x) + 9
i need to solve this using determined coeficients.
note: y' = dy/dx and y''' = d^3y/dx^3