Let Σ be a subset of R^2

that is given by

x^2 + 3xy + 2y^2 + x + y = 0 in R^2.

Determine whether Σ is a hyperbola, or parabola, or ellipse or something else

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- March 8th 2011, 01:53 AMabrahamtimhyperbola, parabola,... determination
Let Σ be a subset of R^2

that is given by

x^2 + 3xy + 2y^2 + x + y = 0 in R^2.

Determine whether Σ is a hyperbola, or parabola, or ellipse or something else - March 8th 2011, 03:36 AMmr fantastic