" If the roots of "x^(3)-42x^(2)+336x-512=0," are in increasing geometric progression,its common ratic "

If the roots of x^(3)-42x^(2)+336x-512=0 are in increasing geometric progression,then its common ratio is

If the roots of x^(3) - 42x^(2) + 336x - 512 = 0 , are in increasing geometric progression, its common ratio is

If the roots of x^(3) - 42x^(2) + 336x - 512 = 0 , are in increasing geometric progression, its common ratio is

If roots of equation 8x^(3)-14x^(2)+7x-1=0 are in geometric progression,then toots are

The condition that the roots of x^(3) -bx^(2) + cx - d = 0 are in geometric progression is:

If the roots of the equation 4x^3 -12x^2 +11x +k=0 are in arithmetic progression then k=

If the roots of the equation 4x^3 -12x^2 +11x +k=0 are in arithmetic progression then k=

If the roots of the equation x^(3) - 7x^(2) + 14x - 8 = 0 are in geometric progression, then the difference between the largest and the smallest roots is