1.

The parabola with drectrix x+2y-1=0 and focus (1,0) is

Answer»

`4X^(2)-4xy+y^(2)-8x+4y+4=0`
`4x^(2)+4xy+y^(2)-8x+4y+4=0`
`4x^(2)+5xy+y^(2)-8x+4y+4=0`
`4x^(2)-4xy+y^(2)-8x-4y+4=0`

ANSWER :A


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