Find the orthogonal trajectories of the family of curves consisting of all circles passing through the points and .

In a previous exercise (section 8.22, Exercise #12) we found that the family of all circles passing through the points and satisfy the differential equation

Therefore, the orthogonal trajectories satisfy the differential equation

**Incomplete.**

*Related*

I’m having some trouble with this one… does anybody have a clue? :'(

Not even Wolfran helps me with this one.