In each of the question, show that the given differential equation is homogeneous and solve each of them.

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Here, putting x= kx and y = ky


= k0.f(x,y)
Therefore, the given differential equation is homogeneous.
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To solve it we make the substitution.
y = vx
Differentiating eq. with respect to x, we get
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Integrating both side, we get
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log(cosecv – cotv) = -logx + logC
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The required solution of the differential equation.