For the function f(x) = 4 _ e (x - 1) - 2x^ 2 + 4x + 5, x > 1, which one of the following is NOT correct ?

JEE Main 2022 Mathematics question

For the function f(x) = 4 , x > 1, which one of the following is NOT correct ?

Answer: (3)

= 4/(x − − x)/(x − 1), which is positive on (1, 2) and negative on (2, ), so f has its maximum at x = 2 with f(2) = 5 (A true).

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Question ID VK-024139