If the roots of the equaion `x^4-12 x^3+c x^2+dx+81=0` are positive then the value of c is The value of d is. Roots of the equation 2cx+d=0 is

If the roots of the equation 10x^(3)-cx^(2)-54x-27=0 are in harmonic progression the value of c is

If the roots of the equation 10x^(3)-cx^(2)-54x-27=0 are in harmonic progression the value of c is

If 1,2,3 and 4 are the roots of the equation x^4 + ax^3 + bx^2 +cx +d=0 then a+ 2b +c=

If 1,2,3 and 4 are the roots of the equation x^4 + ax^3 + bx^2 +cx +d=0 then a+ 2b +c=

If roots of the equation f(x)=x^6-12 x^5+bx^4+cx^3+dx^2+ex+64=0 are positive, then Which has the greatest absolute value ?

If roots of the equation f(x)=x^6-12 x^5+bx^4+cx^3+dx^2+ex+64=0 are positive, then Which has the greatest absolute value ?

If alpha and alpha^(2) are the roots of the equation x^(2) - 6x + c = 0 , then the positive value of c is

If 1,2,3 and 4 are the roots of the equation x^4+ax^3+bx^2+cx+d =0 then a+2b+c=

If both roots of the equation ax^(2)+bx+c=0 lies in (3,8) then possible integral value of one of the root of the equation a((x)/(x-4))^(2)+b((x)/(x-4))+c=0