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Respondido

Simplifique as expressões:

a) 4! + 3!

b) 6! – 5! + 4!

c)
21! × 11! / 12! × 20!

d)
100! × 101! / 99!​

Resposta :

Valsantinago

Explicação passo-a-passo:

a) 4.3.2.1 + 3.2.1=

24 + 6=

30

b) 6.5.4.3.2.1 - 5.4.3.2.1 + 4.3.2.1=

720 - 120 + 24=

600 +24=

624

c) 21 . 20 ! × 11!

___________=

12.11! × 20!

21

___=

12

7/4

d) 100 . 99! × 101!

______________=

99!

100 × 101!

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