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The equation of the parabola with focus ...

The equation of the parabola with focus `(1,-1)` and directrix `x + y + 3 =0` is

A

`x ^(2) + y^(2) -10 x - 2y-2xy -5=0`

B

`x ^(2) + y ^(2) + 10 x -2y - 2xy-5=0`

C

`x ^(2) + y ^(2) + 10x + 2y -2xy -5=0`

D

`x ^(2) + y ^(2) + 10x + 2y + 2x y -5=0`

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The correct Answer is:
A
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