JEE Main 2025 Mathematics question

MathematicsCircleJEE Main 2025

Let the circle C touch the line x – y + 1 = 0, have the centre on the positive x-axis, and cut off a chord of length along the line –3x + 2y = 1. Let H be the hyperbola , whose one of the foci is the centre of C and the length of the transverse axis is the diameter of C. Then is equal to .

Answer: 19

Solution

Solving for circle centre gives a=3, r=. Then ,

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Question ID VK-001915