Question

Obtenha o valor de cada uma das expressões seguintes:

a) $\frac{35!}{33!}$ b) $\frac{24!}{4! (4!-3)}$

Answer 1

a) $\dfrac{35!}{33!} = \dfrac{35.34.33!}{33!} = 35.34 = 1190$

b) $\dfrac{24!}{4!(4!-3)} = \dfrac{24!}{4!(4.3.2.1-3)} = \dfrac{24!}{4!21} = \dfrac{24.23.22.21.20!}{4.3.2.21} = 12.23.11.20!$