oscardc232 oscardc232
  • 17-07-2020
  • Mathematics
contestada



Simplify the expression
4P2
A 12
B 2
C 4
D 24

Respuesta :

hitman12131976 hitman12131976
  • 17-07-2020

Answer:

12

Step-by-step explanation:

[tex]nPr=\frac{n!}{(n-r)!}[/tex]

So in your case, n = 4 and r = 2.

n! = 4! = 4*3*2*1

(n-r)! = (4-2)! = 2! = 2*1

So....

[tex]\frac{4*3*2*1}{2*1}=\frac{24}{2}=12[/tex]

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