A cura di: Administrator

Limite in forma indeterminata $frac{0}{0}$

$lim_{x rightarrow 1} frac{x^2-2x+1}{x^2-1} =$$lim_{x rightarrow 1} frac{(x-1)^2}{(x-1)cdot (x+1)} =$$lim_{x rightarrow 1} frac{x-1}{x+1} = 0$