Naekwon30 Naekwon30

08-07-2016
Mathematics

contestada

Please help me compute 5 P2
a. 20b. 10c. 3d. 2.5

Respuesta :

08-07-2016

Formula: [tex]_nP_r= \dfrac{n!}{(n-r)!}\)[/tex]

n = 5 , r = 2

[tex]_5P_2=\dfrac{5!}{(5-2)=3!}\)[/tex]

[tex]\(\dfrac{5!=5*4*3*2*1}{3!=3*2*1}=\dfrac{5*4}{1}=5*4=20\)[/tex]

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