Răspuns:
Explicație pas cu pas:
[tex]\frac{1}{2} +\frac{1}{3} +\frac{1}{4} +\frac{1}{5} ...\frac{1}{2012} +\frac{1}{2} +\frac{2}{3} +\frac{3}{4} +...\frac{2011}{2012} =\frac{2}{2} +\frac{3}{3} +\frac{4}{4} +...+\frac{2011}{2012} =1+1+1+...+1 =2011[/tex]
deoarece ai 2011 fracţii
