JEE Main Mathematics question

Mathematics Quadratic Equations and Inequalities JEE Main

Consider the following statements: 1. If be real, then 2. If is real, then the greatest value of is 3. If ; , has no real roots, then

Which of these is/are correct?

(A)Only (1)
(B)Only (2)
(C)Only (3)
(D)All of theseCorrect

Answer: (D)

Solution

(1) Put : has real iff . True. (2) Put : needs discriminant

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Question ID VK-013037