# Math Help - Differential Equation

1. ## Differential Equation

i need to find the general solution of the following differential equation.

dy/dx=y/x-cot(y/x).

Anybody be able to show me how to start the this question?

2. ## Re: Differential Equation

Take $u=\frac{y}{x}$ and use this new variable to rewright the original equation in terms of u, x, and $\frac{du}{dx}$.

rewrite* lol