Question

simplifique: A) 9!/8!
B) 2!/5!
C) 4!5!/7!​

Answer 1

Explicação passo-a-passo:

a)

9!/8!

9×8!/8!

9

b)

2!/5!

2!/5×4×3×2!

1/60

c)

4!×5!/7!

4!×5×4!/7×6×5×4!

4!/7×6

24/42

7/4