Question

C8,2= [e uma combinacao

Answer 1

c8,2= 8!/ (8-2)! . 2!

c8,2= 8!/6!.2
 
c8,2= 8x7x6!/61x2

c8,2= 8x7/2

c8,2= 4x7

c8,2= 28

Answer 2

Resposta:

28

Explicação passo-a-passo:

C8,2 = 8! / ( 8 - 2 )! . 2! = 8! / 6! . 2! = 8 . 7 . 6! / 6! . 2! = 56/2 = 28