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If the ends of a focal chord of the para...

If the ends of a focal chord of the parabola `y^(2) = 8x` are `(x_(1), y_(1))` and `(x_(2), y_(2))`, then `x_(1)x_(2) + y_(1)y_(2)` is equal to

A

12

B

20

C

0

D

`-12`

Text Solution

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The correct Answer is:
D
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