September 2018 0 46 Report

Prosze zrobic mi to zadanie. Potrzebne juz dzis. Niech robi ten, kto jest dobry w tym.

Kat alfa jest katem ostrem oraz tg alfa=3. Nie wyznaczajac wartosci sin alfa i cos alfa, oblicz wartosci tg alfa

\frac{4sin^2\alpha+5cos^2\alpha}{sin\alpha*cos\alpha

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caster89
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\frac{4sin^2\alpha+5cos^2\alpha}{sin\alpha*cos\alpha}=\\\frac{4sin^2\alpha}{sin\alpha*cos\alpha}+\frac{5cos^2\alpha}{sin\alpha*cos\alpha}=\\4tg\alpha+5/tg\alpha=12+5/3=13 i2/3


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