Odpowiedź:
I Omega I = 10 !
12xxxxxxxx 21xxxxxxxx
x12xxxxxxx x21xxxxxxx
xx12xxxxxx xx21xxxxxx
itd.
xxxxxxxx12 xxxxxxxx21
więc
I A I = 2*9*8 !
P ( A ) = [tex]\frac{2*9* 8!}{10 !} = \frac{2*9}{9*10} = \frac{1}{5}[/tex]
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Szczegółowe wyjaśnienie:
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Odpowiedź:
I Omega I = 10 !
12xxxxxxxx 21xxxxxxxx
x12xxxxxxx x21xxxxxxx
xx12xxxxxx xx21xxxxxx
itd.
xxxxxxxx12 xxxxxxxx21
więc
I A I = 2*9*8 !
P ( A ) = [tex]\frac{2*9* 8!}{10 !} = \frac{2*9}{9*10} = \frac{1}{5}[/tex]
========================
Szczegółowe wyjaśnienie: