IIT JEE Advanced 2007 Paper 1

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Paragraph for Question 61–63:
Consider the circle x2+y2 = 9 and the parabola y2 = 8x. They intersect at P and Q in the first and the fourth quadrants, respectively. Tangents to the circle at P and Q intersect the x-axis at R and tangents to the parabola at P and Q intersect the x-axis at S.

Section: Mathematics

Question : 62 of 66

Marks: +1, -0

The radius of the circumcircle of the triangle PRS is

[JEE Adv 2007 P1]

5
3√3
3√2
2√3

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