[latex] frac{2}{ sqrt{3} -1} - sqrt{3} =1[/latex] rationalizam numitorul fractiei ... [latex] frac{2(sqrt3+1)}{(sqrt3+1)(sqrt3-1)} -sqrt3=1\ frac{ ot2(sqrt3+1)}{ ot2}-sqrt3=1\ sqrt ot3+1-sqrt ot3=1;\ ightarrow;;1=1[/latex]