If f(x) = x^3 + bx^2 + cx + d and 0 < b^2 < c, then in (- , )

MHT CET 2024 Mathematics question

If and , then in

Answer: (A)

. Its discriminant is . Since , we get , so and the discriminant is negative. The leading coefficient , hence for all real , so is strictly

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Question ID VK-092977