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Can this be an equation of a circle [tex]x^2+y^2-2hx-2ky+2mxy+r=0[/tex]

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- #1

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Can this be an equation of a circle [tex]x^2+y^2-2hx-2ky+2mxy+r=0[/tex]

- #2

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You can find the general equation of a conic section here.

- #3

HallsofIvy

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Perhaps, if m = 0.

- #5

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I guess it can when m = 0, r < k^{2} + h^{2}

- #6

HallsofIvy

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The question in the text was "Can this be the equation of a circle [itex]x^2+ y^3- 2hx- 2kx+ 2mxy= r[/itex]" to which the answer is "Yes". It is possible with m= 0 (so the equation does

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