The difference of roots of quadratic equation 4y2-4y+1=0 is

 

Solution:-Given that the Quadratic equation is

  4y2-4y+1=0

4y2-2y-2y+1=0

2y(2y-1) -1(2y-1) =0

(2y-1) (2y-1)=0

y=1/2, 1/2

the Quadratic equation 1/2, 1/2

The difference of roots of quadratic equation

  1/2-1/2=0