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Combinați de 12 luate câte 4

Răspuns :

nu combinati,dar combinari
=[tex] \frac{12!}{4!(12-4)!}= \frac{12!}{4!*8!}= \frac{8!*9*10*11*12}{4!*8!}= \frac{9*10*11*12}{24}=495 [/tex]