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Suppose the circle having equation x^2+y...

Suppose the circle having equation `x^2+y^2=3` intersects the rectangular hyperbola `x y=1` at points `A ,B ,C ,a n dDdot` The equation `x^2+y^2-3+lambda(x y-1)=0,lambda in R ,` represents. a pair of lines through the origin for `lambda=-3` an ellipse through `A ,B ,C ,a n dD` for `lambda=-3` a parabola through `A , B , C ,a n dD` for `lambda=-3` a circle for any `lambda in R`

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