- #1
th3chemist
- 66
- 0
The question is to solve the equation y'' + ω^2y = cos(ωt)
I know you'll find the complementary and particular functions and add them together.
Now I found the complementary function easily. r= +/- ωi and then plug into the general equation for complex numbers.
The problem I have is with determining the particular function: When I do it, I get 0 = cos(ωt)
The soltuion I guseed was Acos(ωt) + Bsin(ωt).
I'm confused :(.
I know you'll find the complementary and particular functions and add them together.
Now I found the complementary function easily. r= +/- ωi and then plug into the general equation for complex numbers.
The problem I have is with determining the particular function: When I do it, I get 0 = cos(ωt)
The soltuion I guseed was Acos(ωt) + Bsin(ωt).
I'm confused :(.