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Topic: Diophantine Equation
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Posts: 28
From: Ireland
Registered: 5/26/05
Diophantine Equation
Posted: May 29, 2005 12:26 PM
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How many solution(s) does the equation 2((1/a)^2+(1/b)^2+(1/c)^2 +(1/d)^2)=((1/a)+(1/b)+(1/c)+(1/d))^2 have in non-negative integers?

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