1.

……..of the following is the equation of ellipse with focus (-1, 1) eccentricity (1)/(2) and equation of directrix is x - y + 3 = 0.

Answer»

`7x^(2) + 2XY + 7y^(2) + 10x - 10y + 7 = 0`
`7x^(2) - 2xy + 7y^(2) - 10x + 10y + 7 = 0`
`7x^(2) - 2xy + 7y^(2) - 10x - 10y - 7 = 0`
`7x^(2) - 2xy + 7y^(2) + 10x + 10y - 7 = 0`

ANSWER :A


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