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Question

A circle having its centre at (2, 3) is cut orthogonally by the parabola y2=4x. The possible intersection point(s) of these curves, can be


A

(3,23)

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B

(2,23)

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C

(1,2)

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D

(4,3)

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Solution

The correct option is C

(1,2)


Any tangent to the parabola y2=4xat(t2,2t) is yt=x+t2 If it passes through the centre (2, 3) of the circle, then
t23t+2=0t=1,2
The point can be (1, 2) or (4, 4)


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