differential equation help, please!
solve the yp of:
y''+2y'+2y=(10t+7)(e^−t)cos(t)+(11t+25)(^e−t)sin(t)

Question

differential equation help, please! 
solve the yp of:   
y''+2y'+2y=(10t+7)(e^−t)cos(t)+(11t+25)(^e−t)sin(t)

anonymous · Answer

Try The Annihilator Method

anonymous · Answer

im not sure how. the way we were taught didnt give a formal name to it. the method i use makes it really messy :(

anonymous · Answer

my bad, annihilator won't work for Y_p

Use Method of undetermined coefficients

anonymous · Answer

yup, thats what i did. its incredibly messy

anonymous · Answer

and there are too many unknowns. i'm at a loss

anonymous · Answer

do you need the answer by now?

I will try to solve tomorrow, it is 2am over here, gotta go to sleep now.

sorry couldnt help

maybe someone will be able to solve it soon for you here. 

if not, i will solve by tomorrow... good luck!!

anonymous · Answer

it would be great of you to let me know what you get as a solution tomorrow. much appreciated!