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(2)
x^3 +y^3 - 3axy =0
3x^2 + 3y^2. y' - 3a( y + xy' ) =0
x^2 + y^2. y' - a( y + xy' ) =0
(y^2- ax).y' = ay - x^2
y' = (ay - x^2)/(y^2- ax)
(3)
xy = e^(x+y)
xy' + y = ( 1+y').e^(x+y)
[x- e^(x+y) ].y' = e^(x+y) -y
y' = [e^(x+y) -y]/[x- e^(x+y) ]
x^3 +y^3 - 3axy =0
3x^2 + 3y^2. y' - 3a( y + xy' ) =0
x^2 + y^2. y' - a( y + xy' ) =0
(y^2- ax).y' = ay - x^2
y' = (ay - x^2)/(y^2- ax)
(3)
xy = e^(x+y)
xy' + y = ( 1+y').e^(x+y)
[x- e^(x+y) ].y' = e^(x+y) -y
y' = [e^(x+y) -y]/[x- e^(x+y) ]
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