1. **Problem statement:** Find the derivative of the function $$f(x) = \frac{e^x}{x^2}$$ for $$x > 0$$.
2. **Formula used:** We will use the quotient rule for derivatives, which states:
$$\left(\frac{u}{v}\right)' = \frac{u'v - uv'}{v^2}$$
where $$u = e^x$$ and $$v = x^2$$.
3. **Calculate derivatives of numerator and denominator:**
- $$u' = \frac{d}{dx} e^x = e^x$$
- $$v' = \frac{d}{dx} x^2 = 2x$$
4. **Apply the quotient rule:**
$$f'(x) = \frac{e^x \cdot x^2 - e^x \cdot 2x}{(x^2)^2} = \frac{e^x x^2 - 2x e^x}{x^4}$$
5. **Factor the numerator:**
$$f'(x) = \frac{e^x (x^2 - 2x)}{x^4} = \frac{e^x x (x - 2)}{x^4}$$
6. **Simplify the expression:**
$$f'(x) = \frac{e^x (x - 2)}{x^3}$$
**Final answer:**
$$\boxed{f'(x) = \frac{e^x (x - 2)}{x^3}}$$
Derivative Exp X2 7Bd31B
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