rdmart06 rdmart06
  • 08-06-2018
  • Mathematics
contestada

how many three-letter sequences are possible that use the letters q,u,a,k,e,s at most once each?

Respuesta :

iAsk
iAsk iAsk
  • 08-06-2018
6P3 => 6!/(6-3)! = 120.

I can't very well explain, but I hope it works.
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