If one root of the equation `(l-m)x^(2) + lm +1 =0` is double the other and if l is real, then the great value of m is

If one root of equation (l-m) x^2 + lx + 1 = 0 be double of the other and if l be real, show that m<=9/8

If one root of the quadratic equation (a-b)x^2+ax+1=0 is double the other root where a in R , then the greatest value of b is

If one root of the equation (x-1)(7-x)=m is three times the other, then m is equal to

If x = 1 + i is a root of the equation x^(2) - ix - 1-i = 0 then the other real root is

If one real root of the quadratic equation 81x^2 + kx + 256=0 is cube of the other root, then a value of k is

If for all real values of a one root of the equation x^2-3ax + f(a)=0 is double of the other, then f(x) is equal to

One root of the equation ax^(2)-3x+1=0 is (2+i) . Find the value of 'a' when a is not real.

If the equation x^(2)-x+ m^(2) = 0 has no real roots then m can satisfy

The shape of the orbital with the value of l = 2 and m = 0 is

If one root of 2x^(2)-5x+k=0 be double the other, find the value of k.