Question

1) 01. Calcule o valor de:
a) 7! / 4!
b) 5! . 3! / 2! . 4!
c) 12! / 3! + 9!
d) 8! - 4! / 6! + 3!

Answer 1

Resposta:

Explicação passo-a-passo:

a) 7! / 4!

= 7.6.5.4! / 4!

= 210

b) 5! . 3! / 2! . 4!

= 5.4!/4! . 3.2!/2!

= 5.3

= 15

c) 12! / 3! + 9!

12.11.10.9.8.7.6.5.4 3!/3! + 9!

132.720.42.20 + 9.8.7.6.5.4.3.2.1

95040.840 + 72.42.120

9504.84.10^2 + 362880

798336.100 + 362880

79833600 + 362880

80196480

d) 8! - 4! / 6! + 3!

8.7.6.5.4.3.2.1 - 4!/6.5.4! + 3.2.1

56.720 - 1/30 + 6

56726 - 1/30

(30.56726 - 1)/30

(1701780 - 1)/30

1701779/30