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JEE Main 2022 Mathematics question

MathematicsQuadratic Equations and InequalitiesJEE Main 2022

Let a, b ℝ be such that the equation has a repeated root . If and are the roots of the equation , then is equal to

Answer: (2)

Solution

The repeated root condition gives , and = b/a = 15/b. Since is also a root of :

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Question ID VK-024895