elizaannettem1230 elizaannettem1230
  • 03-05-2018
  • Mathematics
contestada

How many permutations exist of the letters a, b, c, d taken four at a time?

Respuesta :

MsEHolt MsEHolt
  • 15-05-2018
There are 24 permutations.

The number of permutations of 4 objects taken 4 at a time is given by
4!/(4-4)! = 4!/0! = 4!/1 = 4! = 24
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