2.1.54 Calculation of limits
condition: Find the limit: \[ \lim _{x \rightarrow \infty} \frac{5 x^{3}-4 x^{2}+x-1}{2 x^{2}+x+1} \]
Calculation of various limits, using L'Hopital's rule, remarkable limits, power series, equivalent values of various other methods.