[" 46.If "p,q,r in R" and the quadratic equation "px^(2)+qx+r=0" has no real root,then "],[[" A."p(p+q+r)<0," B.p "(p-2q+4r)],[" C."p(p+4q+2r)<0," D.None of these "]]

If p,q,r in R and the quadratic equation px^2+qx+r=0 has no real roots, then (A) p(p+q+r)gt0 (B) (p+q+r)gt0 (C) q(p+q+r)gt0 (D) p+q+rgt0

If p,q,r epsilon R and the quadratic equation px^2+qx+r=0 has no real roots, then (A) p(p+q+r)gt0 (B) (p+q+r)gt0 (C) q(p+q+r)gt0 (D) p+q+rgt0

Discriminant of the quadratic equation px^(2) + qx + r = 0 is..

The discriminant of the quadratic equation px^(2) + qx + r = 0 is….

Let p, q, r in R and r gt p gt 0 . If the quadratic equation px^(2) + qx + r = 0 has two complex roots alpha and beta , then |alpha|+|beta| , is

Let p, q, r in R and r gt p gt 0 . If the quadratic equation px^(2) + qx + r = 0 has two complex roots alpha and beta , then |alpha|+|beta| , is

If the roots of a quadratic equation px^(2) + qx + r = 0 are imaginary then……

If p,q,r are positive and are in A.P.the roots of quadratic equation px^(2)+qx+r=0 are all real for a.|(r)/(p)-7|>=4sqrt(3)b|(p)/(r)-7|>=4sqrt(3)c* all p and rd. no p and r

If the roots of the equation px^(2)+qx+r=0 are in the ratio l:m then

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