1.

If (-2,-1) is a limiting point of a coaxal system of whichx^(2) + y^(2) + 2x + 4y + 7 = 0 is a member, then the equation of the or the gonal system is

Answer»

`(x^(2) + y^(2) + x + 3y) + lambda (2x + 3y + 3) = 0`
`3(x^(2) + y^(2) + x+ 3y) + lambda (x + y + 3) = 0 `
`3(x^(2) + y^(2) - x- 3y) + lambda(x - y-3) = 0 `
`3(x^(2) + y^(2) + 2x + 3y) + 3 lambda (2x + 3y + 63 ) = 0 `

Answer :B


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