Internet Olympiad Problema 8

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Beniamin Bogosel
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Internet Olympiad Problema 8

Post by Beniamin Bogosel »

Gasiti toate numerele naturale \( n \) pentru care exista numerele naturale \( a_i,b_i, i=1,...,n \) astfel incat \( (a_1^2+...+a_n^2)(b_1^2+...+b_n^2)-(a_1b_1+...+a_nb_n)^2=n+1 \).

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