26 set 2013, 12:40
26 set 2013, 15:24
26 set 2013, 17:00
Man Utd Escreveu::) olá
\(\\\\\\ \lim_{x\rightarrow 2}\frac{\sqrt{x+2}-2}{x-2} \\\\\\ \lim_{x\rightarrow 2}\frac{(\sqrt{x+2}-2)*(\sqrt{x+2}+2)}{(x-2)*(\sqrt{x+2}+2)} \\\\\\ \lim_{x\rightarrow 2}\frac{x+2-4}{(x-2)*(\sqrt{x+2}+2)} \\\\\\ \lim_{x\rightarrow 2}\frac{x-2}{(x-2)*(\sqrt{x+2}+2)} \\\\\\ \lim_{x\rightarrow 2}\frac{1}{\sqrt{x+2}+2} =\frac{1}{4}\)
att
27 set 2013, 00:04
kustelinha Escreveu:Man Utd Escreveu::) olá
\(\\\\\\ \lim_{x\rightarrow 2}\frac{\sqrt{x+2}-2}{x-2} \\\\\\ \lim_{x\rightarrow 2}\frac{(\sqrt{x+2}-2)*(\sqrt{x+2}+2)}{(x-2)*(\sqrt{x+2}+2)} \\\\\\ \lim_{x\rightarrow 2}\frac{x+2-4}{(x-2)*(\sqrt{x+2}+2)} \\\\\\ \lim_{x\rightarrow 2}\frac{x-2}{(x-2)*(\sqrt{x+2}+2)} \\\\\\ \lim_{x\rightarrow 2}\frac{1}{\sqrt{x+2}+2} =\frac{1}{4}\)
att
Cara o resultado final tem que dar \(\frac{1}{8}\)