If the triplicate of the ratio `(x+a) : (x + b) " is " a : b`, then prove that `x^(3) - 3abx -
Channel: Doubtnut
Date: 2020-05-09

If the triplicate of the ratio `(x+a) : (x + b) " is " a : b`, then prove that `x^(3) - 3abx - ab(a +b) = 0`.