Here it is...
d2y/dx2 + 4y=cos(x) , y(0)=1, dy/dx(0)=1. If I am correct, lambda is for this one 2i and -2i. I'm not sure if i'm doing this right... in any case, what do with this cos(x)?
How to solve this? And what do u get? I'm kinda stuck...
Here it is...
d2y/dx2 + 4y=cos(x) , y(0)=1, dy/dx(0)=1. If I am correct, lambda is for this one 2i and -2i. I'm not sure if i'm doing this right... in any case, what do with this cos(x)?
How to solve this? And what do u get? I'm kinda stuck...
Yes on 2i, -2i. Your complimentary solution is
. It obtain a particualr solution, try a form , sub into the ODE and compare terms. This will give you an A and B. Then use your IC's.