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Matematica / Acum 6 ani

2!+3!+4!+5!+...+10!=?

Anonim
1*2+1*2*3+1*2*3*4+1*2*3*4*5+...+1*2*3*4*5*6*7*8*9*10= calculeaza
cocnao
calculeaza tu
nu am chef
Enis
54
(2+10)+(3+9)+(4+8)+(5+7)+6=12+12+12+12+6=54
Sper ca te-am ajutat