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Kombinacje, gdy kolejnosc nie jest wazna.
A={14 , 23, 24, 34}
|A|=4
P(A)=4/6=2/3
II sposob:
|Ω|=4*3=12
A={(1,4)(2,3)(2,4)(3,2)(3,4)(4,1)(4,2)(4,3)}
|A|=8
P(A)=8/12=2/3