[tex] \frac{^{ \sqrt{3} )}2}{ \sqrt{3} -1} -1=1\\\\
= \frac{2 \sqrt{3} }{ \sqrt{3^2} -1}-1\\\\
= \frac{2 \sqrt{3} }{3-1} -1\\\\
= \frac{2 \sqrt{3} }{2} -1(simplificam~2~cu~2)\\\\
= \sqrt{3} -1 => \frac{2}{ \sqrt{3}-1 } -1 \neq 1 ~~~~ci ~~~ \frac{2}{\sqrt{3}-1}=\sqrt{3} -1
[/tex]
