diff-equation

Question: Family of curves $y={{e}^{x}}(A\cos x+B\sin x)$, represents the differential equation



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

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