If the roots of the equation  from a non-decreasing H.P., then
a)		b)		c)		d)	None of these

(b)

Since roots of the equation  form a non-decreasing H.P. Therefore, roots of the equation

 form a non-increasing A.P.

Let the roots be  and  where

            …(i)

     …(ii)

  …(iii)

From (i), we have

Putting  in (iii), we get

Subtracting the values of  and  (ii), we get