Question

Help me with #4 pleasedeeee

Answer 1

`(dy)/(dx)=-(2x-y-1)/(2y-x-1)`

Explanation:

Differentiating, you get ...

... x·dy +y·dx +dx +dy = 2x·dx +2y·dy

Collecting terms gives ...

... dy(x +1 -2y) = dx(2x -y -1)

... dy/dx = -(2x -y -1)/(2y -x -1)