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4 respostas

A ordem importa pq o grupo formado por Huguinho, Zezinho e Luizinho é igual ao grupo formado por Zezinho, Luizinho e Huguinho.

Usa-se uma combinação .
A(n;d) = n!/(n-d)!

A(8;3) = 8!/(8-3)!
A(8;3) = 8*7*6*5!/3!5!
A(8;3) = 8*7*6 / 3*2
A(8;3) = 8*7

A(8;3) = 56

2006-11-25 07:01:30 · answer #1 · answered by Luiz S 7 · 1 0

54

2006-11-25 10:35:42 · answer #2 · answered by Anonymous · 0 0

Cn,p=n!/p!(n-p)!

C8,3=8! / 3!(8-3)!

= 8x7x6x5x4x3! / 3!(5)!
=8x7x6x5x4x3! / 3!(5x4x3x2x1)
=8x7x6x5x4 / 5x4x3x2x1
=8x7x6 / 3x2x1
=336 / 6
=56

2006-11-25 07:27:35 · answer #3 · answered by PATRICIA MIRANDA M 1 · 0 0

Valeu. 56

2006-11-25 06:43:28 · answer #4 · answered by miguel a 6 · 0 1

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