JEE Main 2019 Mathematics question

MathematicsQuadratic Equations and InequalitiesJEE Main 2019

If m is chosen in the quadratic equation such that the sum of its roots is greatest, then the absolute difference of the cubes of its roots is:

Answer: (D)

Solution

Sum 3/(m² + 1) is greatest at m = 0: ; \sqrt$5(9

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Question ID VK-009825