If `x^(2)+y^(2)=1" verify that "(dy)/(dx).(dx)/(dy)=1`

If ax^(2)+2hxy+by^(2)=c^(2), verify that (dy)/(dx)*(dx)/(dy)=1

If x^2 + 2xy + y^2 = 18 , verify that (dy)/(dx) xx (dx)/(dy) = 1

If y=(3x-4)/(x+2) (x ne -2) , verify the relation (dy)/(dx)=(1)/((dx)/(dy)).

solve: (dy)/(dx)=(2x)/(1+y)

x^(2)(dy)/(dx)+y=1

If y=((1-x)/(x))^(2)," then: "(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 .

y^2+x^2(dy)/(dx)=x y(dy)/(dx)

Solve x^2((dy)/(dx))+y=1