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JEE Main Mathematics question

MathematicsQuadratic Equations and InequalitiesJEE Main

Let and be the roots of the quadratic equation . Observe the lists given below. Column-I: (A) (i) ; (B) (ii) ; (C) (iii) ; (D) (iv) . Column-II: (p) (A) ; (q) (C) ; (r) (D) ; (s) (E) ; (t) (F)

Answer: (A)

Solution

(i) Equal roots need , which is (s); (iii) gives and , so , i.e. , which is (r). (ii) gives and , so ; this is not among

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Question ID VK-013419