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Questions  

 The locus of the centre of a circle which cuts orthogonally  the parabola y2=4x at (1,2) will pass through 

a
(3,4)
b
(4,3)
c
(5, 3)
d
(2,4)

detailed solution

Correct option is A

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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