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JEE Main Mathematics question

MathematicsQuadratic Equations and InequalitiesJEE Main

Let , be such that the equation, has a repeated root , which is also a root of the equation, . If is the other root of this equation, then is equal to

Answer: (A)

Solution

A repeated root needs , i.e. , and then ; putting into : , i.e. , so and

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Question ID VK-014279