If coefficients of biquadratic equation are all distinct and

Last updated: 7/14/2022

If coefficients of biquadratic equation are all distinct and belong to the set {-9, - 5, 3, 4, 7}, then equation has (A) atleast two real roots (B) four real roots, two are conjugate surds and other two are also conjugate surds (C) four imaginary roots (D) None of these