October 2018 2 56 Report

1.Rozwiąż równanie

-x^{3}-3x^{2}+6x+8=0

2.Sprowadź do najprostszej postaci wyrażenie:

\frac{cos\alpha}{1+sin\alpha}+\frac{1+sin\alpha}{cos\alpha}

Proszę o wykonanie zadań krok po kroku


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