Cho $n\in\mathbb{Z}_+$. Hỏi có bao nhiêu cặp đa thức $P(x),\;Q(x)\in\mathbb{R}[x]$ trong đó $deg\; P > deg\; Q$ mà: $[P(x)]^2+[Q(x)]^2=x^{2n}+1$.
$[P(x)]^2+[Q(x)]^2=x^{2n}+1$
Started By Caspper, 19-09-2017 - 23:43
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Posted 19-09-2017 - 23:43
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