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calculati: 10! supra 6!*2!

Răspuns :

10/6*2=10/6*2/1= 20/6= *simplifici cu doi* = 10/3 
[tex] \frac{10!}{6!*2!}= \frac{6!*7*8*9*10}{6!*2}= \frac{7*8*9*10}{2}= 7*4*9*10=2520 [/tex]