Oblicz x. Załącznik poniżej
tgα = 4/8 = ½
tg(90°-α) = ctgα
ctgα = 2 = 4/x
x = 2
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tgα = 4/8 = ½
tg(90°-α) = ctgα
ctgα = 2 = 4/x
x = 2