DevinTheG30 DevinTheG30
  • 27-09-2016
  • Mathematics
contestada

Find the number of permutations of the first eight letters of the alphabet taking four letters at a time.

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toporc
toporc toporc
  • 27-09-2016
The number of permutations of 8 different things taken 4 at a time is given by:
[tex]8C4=\frac{8!}{(8-4)!}=8\times7\times6\times5=1680[/tex]
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