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you have 5 antiques and want to display 3 on a shelf. how many different 3 antique arrangements are possible

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Respuesta :

[tex]\bf _{n}P_{r}=\cfrac{n!}{(n-r)!}\qquad\qquad _{5}P_{3}=\cfrac{5!}{(5-3)!}[/tex]

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