Răspunsuri

2014-09-22T22:32:38+03:00
Conditii 2x-1>= 0 => x>=1/2 => [1/2,+ infinit )
            x>0 
Din cele doua intervale => D = [1/2,+ infinit)
Ridici ecuatia la patrat
2x-1=x^2=>x^2-2x+1=0=>(x-1)^2=0=>x=1=>S={1}