Question

Fatorial

Simplifique as expressões a seguir:

a)5!/8!

b)9!/7!

c)2!/4!

d)6!/3!

Answer 1

Resposta:
a)5!/8! = 0,0029
5! 5x4x3x2x1=120
8! 8x7x6x5x4x3x2x1=40320


b)9!/7! = 72
9! 9x8x7x6x5x4x3x2x1 = 362880
7! 7x6x5x4x3x2x1 = 5040

c)2!/4! = 0,0833
2! = 2x1 = 2
4! = 4x3x2x1 = 24


d)6!/3! = 120
6! 6x5x4x3x2x1 = 720
3! 3x2x1 = 6