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The focal chord of y^2= 16x is tangent t...

The focal chord of `y^2= 16x` is tangent to `(x-6)^2+ y^2= 2`, then the possible values of the slope of this chord are :

A

1, -1

B

`-1/2 ,2`

C

`-2, 1/2`

D

`1/2, 2`.

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