diff-equation

Question: The differential equation of the family of curves represented by the equation ${{x}^{2}}y=a$, is



1) $\frac{dy}{dx}+\frac{2y}{x}=0$
2) $\frac{dy}{dx}+\frac{2x}{y}=0$
3) $\frac{dy}{dx}-\frac{2y}{x}=0$
4) $\frac{dy}{dx}-\frac{2x}{y}=0$
Solution: Explanation: No Explanation
Formation of differential equations

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