`(x^2+y^2)^2=xy` find dy/dx

If (x^2+y^2)^2=x y , find (dy)/(dx)

If (x^2+y^2)^2=x y , find (dy)/(dx)

If x^2+y^2=x-y Find dy/dx

If x^2 + y^2 = log(xy) , find dy/dx .

If sec(x+y) = xy find dy//dx

If (x+y)^2=2a x y , find (dy)/(dx)

if 2^x-2^y=2^(x+y find dy/dx at x=y=2

The differential equations of all circle touching the x-axis at orgin is (a) (y^(2)-x^(2))=2xy((dy)/(dx)) (b) (x^(2)-y^(2))(dy)/(dx)=2xy ( c ) (x^(2)-y^(2))=2xy((dy)/(dx)) (d) None of these

If sec (x+y) = xy, then find (dy)/(dx)

If a x^2+2\ h x y+b y^2+2\ gx+2\ fy+c=0 , find (dy)/(dx) and (dx)/(dy) . Also, show that (dy)/(dx)dot(dx)/(dy)=1 .