Prove that there are no positive integers x & y such that(adsbygoogle = window.adsbygoogle || []).push({});

[tex]\frac{1}{x^2} + \frac{1}{xy} + \frac{1}{y^2} = 1 [/tex].

I really have no idea where to start. I tried rearranging the equation, but I could not see anything useful in any of the rearrangements.

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# Homework Help: No idea where to start.

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