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The chord of contact of a point A(x(A), ...

The chord of contact of a point `A(x_(A), y_(A))` of `y^(2)=4x` passes through (3, 1) and point A lies on `x^(2)+y^(2)=5^(2)`. Then :

A

`5x_(A)^(2)+24x_(A)+11=0`

B

`13x_(A)^(2)+8x_(A)-21=0`

C

`5x_(A)^(2)+24x_(A)+61=0`

D

`13x_(A)^(2)+21x_(A)-31=0`

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A
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