Lê Anh Duy
02/05/2018 at 10:00-
Alone 03/05/2018 at 15:52
\(f\left(1\right)=f\left(0\right)+1=1+1=2\)
\(f\left(2\right)=f\left(1\right)+1=2+1=3\)
\(f\left(3\right)=f\left(2\right)+1=3+1=4\)
...
So \(f\left(x\right)=x+1\)
Lê Anh Duy selected this answer.