A cura di: Administrator

Limite in forma indeterminata $frac{infty}{infty}$

$lim_{x rightarrow -infty}frac{x^3-5x+4}{2x^3+5}=$$lim_{x rightarrow -infty}frac{x^3cdot (1-frac{5}{x^2}+frac{4}{x^3})}{x^3cdot (2+frac{5}{x^3})}=frac{1}{2}$