Fuente TeX:

\displaystyle \lim_{x \to +\infty} \frac{f^{\prime}(x)}{g^{\prime}(x)} = \lim_{x \to +\infty} \frac{\frac{2\log(x)}{x}}{\frac{1}{2\sqrt{x}}} = \lim_{x \to +\infty} \frac{4\log(x)}{\sqrt{x}}