Recent content by GodsmacK

Hello again, I've got another trouble with a new differential equation: (x^2+2)y'''-(x^2+2x+2)y''+2(x+1)y'-2y=0 I did a try using matrices(file is attached), however the system to be solved is hard to compute. Do you have any idea to help me solve this out?

Hi everyone, I've been trying to solve the following equation: x^2(yy''-{y'}^2)+xyy'-y\sqrt{y^2+x^2y'^2}=0 One of the tries was to do the substitution z=xy'. However, it doesn't seem to work...

Hey guys! I've just solved this thing. In fact, like Charles wrote, it is integration by parts. First you distribute the \sin(e^x) into the parenthesis, then you do the substitution u=e^x. After some steps you shall get something like this: I=\int \ln(u) \sin(u)du-\int \frac{\sin(u)}{u^2}du...

Hello, everyone I've trying to solve this integral but it seems like the methods I know are not enogh to solve it. So I'd be glad if you could give me some trick to get into the answer. Here it is: Thanks in advance!