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

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 10 x^3-n x^2-54 x-27=0 are in harmonic progression, then n eqauls _________.

If the roots of 10 x^3-n x^2-54 x-27=0 are in harmonic progression, then n eqauls _________.

If the roots of 10 x^3-n x^2-54 x-27=0 are in harmonic progression, then n eqauls _________.

If the roots of 10 x^3-n x^2-54 x-27=0 are in harmonic progression, then n eqauls _________.