Question

calcule:
a)50!/
3!48!=
b) 5!.7!/7!=
​

Answer 1

Explicação passo-a-passo:

a) $\frac{50!}{3!48!}=\frac{50.49.48!}{3.2.1.48!}=\frac{25.49}{3}=\frac{1225}{3}$

b) $\frac{5!7!}{7!}=5!=5.4.3.2.1=120$