Use the quotient rule on the left side and the product rule on the right side. The quotient rule is $\frac{d}{dx} \left( \frac{u}{v} \right) = \frac{v \cdot \frac{du}{dx} - u \cdot \frac{dv}{dx}}{v^{2}}$ and the product rule is $\frac{d}{dx} \left( u \cdot v
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