jamesfredrickap jamesfredrickap
  • 25-07-2017
  • Mathematics
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what is the number of ways to arrange 5 objects from a set of 9 different objects

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jdoe0001 jdoe0001
  • 26-07-2017
[tex]\bf _nP_r=\cfrac{n!}{(n-r)!}\qquad \begin{cases} n=9\\ r=5 \end{cases}\implies _9P_5=\cfrac{9!}{(9-5)!}[/tex]
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