Which two are special cases for an Ellipse?

Circle


Hyperbola


Parabola


EllipseWhich two are special cases for an Ellipse?
Eq of ellipse: x^2 / a^2 + y^2 / b^2 = 1.





If a =b, this is a circle, which would be a special case.





Not sure the other answers work.Which two are special cases for an Ellipse?
Circle is special Ellipse case

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