- #1

Nathan W0

- 2

- 0

## Homework Statement

(x+y)dx-(x-y)dy=0

## Homework Equations

## The Attempt at a Solution

The solution is c=arctan^-1(y/x)-(1/2)*ln(x^2+y^2) but I don't know how to get the answer. If someone could explain how to solve the above DE, that would be great.