
PRINCÍPIO FUNDAMENTAL DA CONTAGEM
Presentation
•
Mathematics
•
11th Grade
•
Practice Problem
•
Hard
SANDRA MIRANDA
Used 23+ times
FREE Resource
7 Slides • 0 Questions
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PERMUTAR:
É O SINÔNIMO DE TROCAR.INTUITIVAMENTE,NOS PROBLEMAS DE CONTAGEM,DEVEMOS ASSOCIAR A PERMUTAÇÃO À NOÇÃO DE EMBARALHAR,ISTO É, TROCAR DE POSIÇÃO.
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É A MULTIPLICAÇÃO DELE PELOS SEUS ANTECESSORES MAIORES QUE ZERO.
FATORIAL
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QUANTOS ANAGRAMAS PODEMOS FORMAR COM A PALAVRA PERDÃO:
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A PALAVRA PERDÃO TEM 6 LETRAS.
BASTA CALCULAR :
P6 = 6!
6! = 6.5.4.3.2.1
= 720
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QUANTOS ANAGRAMAS PODEMOS FORMAR COM A PALAVRA PERDÃO QUE INICIAM COM P E TERMINAM EM O ?
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DEVEMOS PERMUTAR AS 4 LETRAS NÃO FIXAS,OU SEJA,CALCULAR P4:
P4 = 4.3.2.1 = 24
PORTANTO, HÁ 24 ANAGRAMAS DA PALAVRA PERDÃO INICIADOS COM P E TERMINADOS COM O.
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