Odpowiedzi

2009-12-03T18:16:23+01:00
Cos = 5/13

sin = 12/13
tg = 12/5
ctg = 5/12
2009-12-03T18:18:13+01:00
Cos alfa = 5/13
sin alfa= 12/13
tg alfa = 12/5
ctg alfa= 5/12