1. The problem statement, all variables and given/known data use phasors to evaluate the steady-state solution to the equation f'' + 1.5f' + f = Ce^2tj 2. Relevant equations 3. The attempt at a solution let f = Ce^2tj (this is a 'trial solution', i think) f' = 2tCe^2tj f'' = 4(t^2)Ce^2tj therefore 4(t^2)Ce^2tj + 3tCe^2jt + Ce^2tj = Ce^2tj 4t^2 + 3t = 0 therefore t = 0 and t = -3/4 therefore f = C and f = Ce^-1.5tj. ^ the above is NOTHING like the answer. what am i doing wrong?