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Review paper

RJEŠAVANJE KUBNE JEDNAČINE POMOĆU TRIGONOMETRIJSKE SMJENE

By
Almir Huskanović ,
Almir Huskanović
Hermina Alajbegović
Hermina Alajbegović
Editor: Muhamed Arnaut

Abstract

Postupak rješavanja kubne jednačine , ax bx cx d a b c d a + + + = ∈ ≠ � je odavno poznat (još od 16. vijeka). U opštem slučaju koriste se Cardanove formule. Međutim, zbog dosta komplikovanog postupka, obično se pokušavaju najprije iskoristiti neki jednostavniji postupci. U ovom radu prezentiram rješavanje kubne jednačine u slučaju kad ona ima sva tri rješenja realna. Ovaj postupak je naročito koristan ako nijedno rješenje jednačine nije racionalan broj.

Citation

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. 

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