Question

1) calcule:
a) 5!=
b) 8!=

​

Answer 1

Explicação passo-a-passo:

a)

$5!$

$5 \times 4 \times 3 \times 2 \times 1$

$5 \times 4 \times 3 \times 2$

$10 \times 4 \times 3$

$40 \times 3$

$\red{120}$

b)

$8!$

$8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2 \times 1$

$8 \times 7 \times 6 \times 5 \times 4 \times 3 \times 2$

$8 \times 7 \times 6 \times 10 \times 4 \times 3$

$80 \times 7 \times 6 \times 4 \times 3$

$560 \times 6 \times 4 \times 3$

$3360 \times 4 \times 3$

$13440 \times 3$

$\red{40320}$