Question

1. Calcule:
a) 2! + 3!

2) Simplifique as expressões:
a)9!/7!
b) 7!/6!
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Answer 1

Explicação passo-a-passo:

a-) 2.1+3.2.1= 2+6= 8

b-) 9!/7!= 9.8.7.6.5.4.3.2.1/7.6.5.4.3.2.1= 362.880/5.040= 72

c-) 7!/6!= 7.6.5.4.3.2.1/6.5.4.3.2.1= 5.040/720= 7