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If distance of a point (x(1),y(1)) from ...

If distance of a point `(x_(1),y_(1))` from each of two lines `L_(1)` and `L_(2)`, through the orign , is `delta`, then joint equation of `L_(1)` and `L_(2)` is

A

`(x_(1)y-xy_(1))^(2)=delta^(2)(x^(2)+y^(2))`

B

`(x_(1)y+xy_(1))^(2)=delta^(2)(x^(2)+y^(2))`

C

`(x_(1)x-yy_(1))^(2)=delta^(2)(x^(2)+y^(2))`

D

`("xx"_(1)+"yy"_(1))^(2)=delta`

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A
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