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a fost răspuns

Stabiliti cate nr naturale de 4 cifre distincte se pot forma cu elementele multimii {0, 1, 2, 3}

Răspuns :

CosmoteRo
(1,0,2,3)
(1,0,3,2)
(1,2,0,3)
(1,2,3,0)
(1,3,0,2)
(1,3,2,0)
(2,0,1,3)
(2,0,3,1)
(2,1,3,0)
(2,1,0,3)
(2,3,0,1)
(2,3,1,0)
(3,0,1,2)
(3,0,2,1)
(3,1,2,0)
(3,1,0,2)
(3,2,0,1)
(3,2,1,0)
[tex] P_{4} - P_{3}=24-6=18 [/tex]