1.

If c in R be such that the line 4x - y + c = 0touches the ellipse x^(2) + 4y^(2) = 4 , then an equation having all such values of c among its roots is

Answer»

`x^(2) - (1 + sqrt(7) x + sqrt(17) = 0`
`x^(2) - (1 - sqrt(17))x - sqrt(17) = 0`
`x^(3) - x^(2) - 17X + 17 = 0`
`x^(3) - x^(2) + 17x - 17 = 0 `

Answer :C


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