diff-equation

Question: The solution of the equation $\frac{dy}{dx}=\frac{x+y}{x-y}$is



1) $c{{({{x}^{2}}+{{y}^{2}})}^{1/2}}+{{e}^{{{\tan }^{-1}}(y/x)}}=0$
2) $c{{({{x}^{2}}+{{y}^{2}})}^{1/2}}={{e}^{{{\tan }^{-1}}(y/x)}}$
3) $c({{x}^{2}}-{{y}^{2}})={{e}^{{{\tan }^{-1}}(y/x)}}$
4) None of these
Solution: Explanation: No Explanation
Homogeneous differential equations

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