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JEE Advanced Mathematics question

MathematicsApplication of DerivativesJEE Advanced

Let the tangent to the graph of at the point be parallel to the -axis, and let and , where is a very small positive number. Then the ordinate of the point is

Answer: (A)

Solution

The tangent is horizontal, so . changes sign from (just left of ) to (just right of

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Question ID VK-109397