A cura di: Administrator

$lim_{x rightarrow +infty} frac{3x^2-5x cos x+7sin x}{6x^2+5sin x} =lim_{x rightarrow +infty} frac{3-frac{5 cos x}{x}+frac{7 sin x}{x^2}}{6+frac{5 sin x}{x^2}} =frac{3}{6} = frac{1}{2}$