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The set of points on the axis of the par...

The set of points on the axis of the parabola `y^2-4x-2y+5=0` from which all the three normals to the parabola are real , is

A

`{(x,1): x gt 3}`

B

`{(x, -1): x ge1}`

C

`{(x, 3):x ge 1}`

D

`{(x, -3): x ge 3}`

Text Solution

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The correct Answer is:
A
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