Question

Fatorial


Simplifique as expressões:


a) 4! + 5!/ 4!

b) 8!/ 4! 6!

c)6!/5!2!

d)20!13!/19!12!

e)3!5!/4!6!

f)6!+3!-2!/5!

Answer 1

Explicação passo-a-passo:

a) 4! + 5! = 5! = 5.4.3.2.1 = 120

4!

b) 8! = 8.7.6! = 56. = 56

4! 6! 4! 6! 4.3.2.1. 24

c) 6! = 6.5! = 6. = 3

5!2! 5!2.1. 2

d)20!13! = 20.19! 13.12! = 20.13 = 260

19!12! 19!12!

e)3!5! = 3! 5! = 1 = 1

4!6! 4.3! 6.5! 4.6 24

f)6!+3!-2! = 6.5! + 3.2.1 - 2.1 = 6 + 6 - 2 = 12 - 2 = 10

5! 5!