Ответ:
-2
Объяснение:
[tex]A^m_n=\frac{n!}{(n-m)!}[/tex]
[tex]C^m_n=\frac{n!}{m!(n-m)!}[/tex]
P=n!
[tex]A^2_4=\frac{4!}{(4-2)!}=\frac{4!}{2!}=\frac{1*2*3*4}{1*2}=12[/tex]
[tex]C^5_{10}=\frac{10!}{5!(10-5)!}=\frac{10!}{5!*5!}=\frac{5!*6*7*8*9*10}{5!*1*2*3*4*5}=252[/tex]
P₅=5!= 1*2*3*4*5= 120
(12-252):120= -2
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Verified answer
Ответ:
-2
Объяснение:
[tex]A^m_n=\frac{n!}{(n-m)!}[/tex]
[tex]C^m_n=\frac{n!}{m!(n-m)!}[/tex]
P=n!
[tex]A^2_4=\frac{4!}{(4-2)!}=\frac{4!}{2!}=\frac{1*2*3*4}{1*2}=12[/tex]
[tex]C^5_{10}=\frac{10!}{5!(10-5)!}=\frac{10!}{5!*5!}=\frac{5!*6*7*8*9*10}{5!*1*2*3*4*5}=252[/tex]
P₅=5!= 1*2*3*4*5= 120
(12-252):120= -2