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If (x (1), y(1))and (x(2), (y(2)) are t...

If `(x _(1), y_(1))and (x_(2), (y_(2))` are the end points of a focal chord of the parabola `y ^(2) = 5x, ` then `4 x _(1) x_(2)+y_(1)y_(2)=`

A

1) 25

B

2) 5

C

3) 0

D

4) `5/4`

Text Solution

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The correct Answer is:
C
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