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A point P is taken on 'L' such that 1/(O...

A point P is taken on 'L' such that `1/(OP)^(2)=1/(OA)^(2)+1/(OB)^(2)` then locus of P is

A

`3x+3y-40=0`

B

`3x+3y+40=0`

C

`3x-3y-40=0`

D

`3x-3y +40=0`

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