[tex] \lim_{x\to \inft0} \frac{2 \sqrt{1-x}-a }{x} = \lim_{x \to \inft0} \frac{2( \sqrt{1-x} -1)}{x} [/tex] =[tex] \lim_{ \to \inft0} \frac{2( \sqrt{1-x}-1)( \sqrt{1-x}+1)}{x( \sqrt{1-x}+1)} = \lim_{x \to \inft0} \frac{2(1-x-1)}{{x[tex] \lim_{x\to \inft0} \frac{-2}{( \sqrt{1-x}+1)} =-1[/tex]}} = \lim_{x\to \inft0} \frac{-2x}{{{x( \sqrt{1-x}+1)}}}=
[/tex] =
am o gresala , o scriu mai jos
