diff-equation

Question: The differential equation found by the elimination of the arbitrary constant K from the equation $y=(x+K){{e}^{-x}}$is



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

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