Cine ma poate ajuta !!!
a)[tex] \frac{ \sqrt{2}+1 }{ \sqrt{2}-1 } + \frac{ \sqrt{2}-1 }{ \sqrt{2}+1 } =[/tex]
b)[tex]5- \frac{1}{2} : \frac{3}{4} +( \frac{5}{6}) ^{0} =
[/tex]
c)[tex]19- \frac{10}{3} . \frac{5}{6} [/tex]=