Question

. Resolva as seguintes operações com fatoriais: a) 5! - 3!
b) 2! + 5!
c) 0! . 5!
d) 3! . 1!
e) 16!/ 15!
g) 4!/ 3!

Answer 1

a) 5! - 3!

(5x4x3x2x1)-(3x2x1)

120 - 6 = 114

b) 2! + 5!

(2x1)+(5x4x3x2x1)

2 + 120 = 122

c) 0! . 5!

1 . (5x4x3x2x1)

1 . 120 = 120

d) 3! . 1!

(3x2x1) . (1)

6 . 1 = 6

e) 16!/ 15!

$\frac{16.15.14.13.12.11.10.9.8.7.6.5.4.3.2.1}{15.14.13.12.11.10.9.8.7.6.5.4.3.2.1}$

16

g) 4!/ 3!

$\frac{4.3.2.1}{3.2.1}$

4