Q.
The locus of the centre of a circle which cuts orthogonally the parabola y2=4x at (1,2) will pass through
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a
(3,4)
b
(4,3)
c
(5, 3)
d
(2,4)
answer is A.
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Detailed Solution
Tangent to the parabola y2=4x at (1,2) will be the locus, i.e., 2y=2(x+1) or y=x+1
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