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Homework Statement
i have the equation dy/dx = [tex]\frac{(y/x)-4}{1-(y/x)}[/tex]
i am told that v(x)=xy
and v=y/x
Express this using v, dv/dx, and x
I can get dy/dx = [tex]\frac{(v)-4}{1-(v)}[/tex] but that's it
Homework Equations
??
The Attempt at a Solution
I don't even know how to do dv/dx
can anyone help. im so confused?