I was hoping you could give me a hint on how to find the equations of the axis of the ellipse of equation [tex]5x^2-6xy+5y^2-4x-4y-4=0[/tex]. I think this is supposed to be an exercise about lagrange multipliers or something related to the gradient, but i really dont know. I am clueless, i dont know any property about ellipses in general.(adsbygoogle = window.adsbygoogle || []).push({});

Many Thanks, Paul.

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# How to find the equations of the axis of the ellipse

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