September 2018 1 23 Report

Wiedzac, ze \alpha jest katem ostrym i tg\alpha=3, oblicz wartosc wyrazenia: (8cos\alpha - 7sin\alpha) / (5cos\alpha + 2sin\alpha) .

Wynik powinien wyjść -1 i 2/11. Proszę o rozwiązanie.


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