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The tangents drawn at the extremeties of...

The tangents drawn at the extremeties of a focal chord of the parabola `y^(2)=16x`

A

intersect at an angle of `60^(@)`

B

intersect at an angle of `45^(@)`

C

intersect on x=0

D

interesect on the line x+4=0

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The correct Answer is:
D
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