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If the two pairs of lines x^(2)-2mxy-y^(...

If the two pairs of lines `x^(2)-2mxy-y^(2)=0 and x^(2)-2nxy-y^(2)=0` are such that one of them represents the bisector of the angles between the other, then

A

mn + 1 = 0

B

mn - 1 = 0

C

`1/m + 1/ (nb) =0`

D

`1/m-1/n=0`

Text Solution

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The correct Answer is:
A
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