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JEE Main 2019 · 9 Apr · Shift II

JEE Main 2019 Mathematics question on Complex Numbers and Quadratic Equations

If mm is chosen in the quadratic equation (m2+1)x2−3x+(m2+1)2=0(m^2+1)x^2-3x+(m^2+1)^2=0 such that the sum of its roots is greatest, then the absolute difference of the cubes of its roots is
  1. A.
    10510\sqrt{5}
  2. B.
    858\sqrt{5}
  3. C.
    838\sqrt{3}
  4. D.
    434\sqrt{3}
Show answer

Correct option: B

[JEE Main 2019 · 9 Apr · Shift II]

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