TeX джерело:

\lim_{n \to \infty}\frac{n^2+7n+5}{n^2-2}=\lim_{n \to \infty}\frac{\frac{n^2}{n^2}+\frac{7n}{n^2}+\frac{5}{n^2}}{\frac{n^2}{n^2}-\frac {2}{n^2}}=\lim_{n \to \infty}\frac{1+\frac{7}{n}+\frac{5}{n^2}}{1-\frac{2}{n^2}}=