Question

E= 20 ! + 21 ! +22! / 20! + 21 !

Answer 1

Respuesta:

22

Explicación paso a paso:

E = $\frac{20!+21!+22!}{20!+21!}$

E = $\frac{20! + 21.20! + 22.21.20!}{20!+21.20!}$

E = $\frac{20!(1+21+22.21)}{20!(1+21)}$

E = $\frac{1+21+22.21}{1+21}$

E = $\frac{22+462}{22}$

E = $\frac{484}{22}$

E = 22