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MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

MATEMATIKA 1 Senka Banic PREDAVANJA (grupa G1): utorak i ...

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4 x 0 2 R (ili C) je nula polinoma p n ako i samo ako je p n (x 0 ) = 0: p n (x 0 ) = 0 () p n (x) = (x x 0 ) p n 1 (x) : Polinom n tog stupnja p n ima tocno n nula, racunajući višestruke i kompleksnenule. Ako je z = a + bi 2 C nula polinoma p n ; onda je i z = abi nula tog polinoma. Ako su x 1 ; x 2 ; : : : ; x n nule polinoma p n (realne ili kompleksne, jednostruke ilivišestruke) tada vrijedi:p n (x) = a n (x x 1 ) (x x 2 ) : : : (x x n ) :

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