Question

Aflati :$\frac{6}{2x-1}$ apartine N

Answer 1

2x-1=divizor al lui  6
divizorii lui 6  sunt{1,2,3,6}
2x-1=1
x=1                   
6/(2*1-1)=6/1=6   
2x-1=2
x=3/2
6/(2*3/2-1)=6/2=3   
2x-1=3
x=2
6/(2*2-1)=6/3=2   
2x-1=6
x=7/2
x={1,3/2,2,7/2)
6/(2*7/2-1) =6/6=1