December 2018 2 23 Report
Dla kąta alfa w trójkącie prostokątnym sin alfa = 2/3, cos alfa = 5/3 pierwiastki z 5. Zatem tg alfa
a)3/pierwiastek z 5
b)3/2
c)2 pierwiastki z 5/5
d)pierwiastek z 5/3
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