Question

решите пожалуйста.....

Answer 1

$1) lim_{x to infty} frac{2x^3-2x^2-1}{x^3+x} =lim_{x to infty} frac{2-frac{2}{x}-frac{1}{x^3}}{1+frac{1}{x^2}} =2$

$2) lim_{x to -2} frac{x+2}{(2-x)(2+x)} =lim_{x to -2} frac{1}{2-x} =frac{1}{4}$