Question

lim (x-4)³ / 4-x (x tende a 4

Answer 1

$\lim_{x \to 4}\frac{(x-4)^{3}}{4-x}=\lim_{x \to 4}\frac{(x-4)^{3}}{-(x-4)}= \lim_{x \to 4}-\frac{(x-4)^{2}}{1}=0$