diff-equation

Question: $y=4\sin 3x$is a solution of the differential equation

1) $\frac{dy}{dx}+8y=0$

2) $\frac{dy}{dx}-8y=0$

3) $\frac{{{d}^{2}}y}{d{{x}^{2}}}+9y=0$

4) $\frac{{{d}^{2}}y}{d{{x}^{2}}}-9y=0$

Solution:

Explanation: No Explanation

Formation of differential equations

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