ligittiger12806 ligittiger12806

22-03-2019
Mathematics

contestada

Evaluate: 5P5.
it's for permutations.
someone help pls

Respuesta :

jimrgrant1 jimrgrant1

22-03-2019

Answer:

120

Step-by-step explanation:

Using the definition

n[tex]P_{r}[/tex] = n! / (n - r ) !

where n! = n(n - 1)(n - 2) ....... × 3 × 2 × 1

Hence

5[tex]P_{5}[/tex] = 5! / 0! = 5! ← 0! = 1

5[tex]P_{5}[/tex] = 5! = 5 × 4 × 3 × 2 × 1 = 120

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