diff-equation

Question: Integrating factor of the differential equation $\frac{dy}{dx}+P(x)y=Q(x)$ is



1) $\int{P\,dx}$
2) $\int{Q\,dx}$
3) ${{e}^{\int{P\,dx}}}$
4) ${{e}^{\int{Q\,dx}}}$
Solution: Explanation: No Explanation
Linear differential equations

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