Odpowiedź:
A. a<30°
Wyjaśnienie:
tg45° = 1
tg30°=≈≈0,58
to tg∝=0,5 ⇒a<30°
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Odpowiedź:
A. a<30°
Wyjaśnienie:
tg45° = 1
tg30°=≈≈0,58
to tg∝=0,5 ⇒a<30°