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Prove that X2 – Y2 = C(X2 + Y2)2 is the General Solution of the Differential Equation (X3 – 3xy2)Dx = (Y3 – 3x2y)Dy, Where C is Parameter

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Question

Prove that x2 – y2 = c(x2 + y2)2 is the general solution of the differential equation (x3 – 3xy2)dx = (y3 – 3x2y)dy, where C is parameter

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Solution

The given equation is:

(x3 – 3xy2)dx = (y3 – 3x2y)dy

`=> (dy)/(dx) = (x^3 - 3xy^2)/(y^3 - 3x^2y)`

which is a homogeneous equation.therefore substituting y=vx

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2016-2017 (March) Delhi Set 1

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