JEE Advanced Mathematics question

MathematicsArea Under CurveJEE Advanced

Three times the least value of the area bounded by the line and the parabola , being a parameter, is .

Answer: 32

Solution

The parabola is (vertex , meeting the -axis at ). The line passes through , which lies inside the parabola (), so it always cuts the parabola at two points.

Intersections: , with roots :

α + β

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Question ID VK-110304