if p,q,r be the numbers in A.P. then roots of the equation` px^2 +qx +r = 0` are of

If p,q,r are + ve and are in A.P., the roots of quadratic equation px^2 + qx + r = 0 are all real for

If the roots of the equation x^(3) - px^(2) + qx - r = 0 are in A.P., then

If the roots of the equation x^(3) - px^(2) + qx - r = 0 are in A.P., then

if P , q, r are positive and are in A.P the roots of the quadrativ px^2 + qx + r=0 real for

If p, q, r are positive and are in AP, the roots of quadratic equation px^(2) + qx + r = 0 are real for :

If p,q,r are three positive real number are in AP , then the roots of the quadratic equation px^2+qx+r=0 are all real for

If p,q,r , three positive real numbers are in A.P., then the roots of px^(2) + qx + r = 0 are all real for :