Dimostrare che tan(pi/16), -tan(7pi/16) sono soluzioni dell’equazione x⁴ + 4x³ – 6x² – 4x + 1 = 0

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Dimostrare che tan(pi/16), -tan(7pi/16) sono soluzioni dell'equazione x⁴ + 4x³ - 6x² - 4x + 1 = 0

by pasquale.clarizio |
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Ho dimenticato - 4a, per la seconda soluzione, si procede in maniera identica

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pasquale.clarizio

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