differential equations Flashcards
1
Q
how to find a non separable integrating factor
A
- arrange in the right form
- find I(F)
- I(F)y = f I(F) Q(x) dx
2
Q
formula for complex roots of a second order
A
y = e^p(x) (Asinqx + Bcosqx)
3
Q
particular integral for e^x
A
Pe^qx
4
Q
what to do if the particular integral is already in the complemantary funciton
A
you add an x into the particular integral
