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Cos a = 4/5 = sin b
Tg a = 3/4 = Ctg b
Ctg a = 4/3 = Tg b
2. Bok c = pierw z 34
Sin a = 3/pierw z 34=3*pierw z 34/34=sin b
Cos a = 5/pierw z 34=5*pierw z 34/34=cos b
Tg a = 3/5 = Ctg b
Ctg a = 5/3 = Tg b