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donjar

$P^2 = Q^2$ di polinom monik

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Diberikan $P$ dan $Q$ suku banyak monik dengan koefisien kompleks sehingga $P(P(x)) = Q(Q(x))$ untuk setiap $x$ kompleks. Buktikan $P(x) = Q(x)$ untuk setiap $x$ kompleks.

 

Sumber:

Romania TST 2000 no. 2

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