I thought up this little problem last night (hopefully it's not too easy):(adsbygoogle = window.adsbygoogle || []).push({});

If n,m,p,q are postive integers and:

[tex]\frac{(n+m-1)^2 +n -m +1}{2} = \frac{(p+q-1)^2 +p -q +1}{2}[/tex]

Prove that n=p and m=q

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# Prove this!

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