1.

The locus of the points equidistant from the pair of line x^2cos^2theta-2xysin^2theta-y^2sin^2theta=0 is

Answer»

`x^2-y^2+xycosec^2theta=0`
`x^2+y^2+xycosec^2theta=0`
`x^2-y^2+2xycosec^2theta=0`
`x^2+y^2+2xycosec^2theta=0`

ANSWER :A


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