Question

(n-2)! / (n-4)! egal cu 12          sa se afle numarul natural n

Answer 1

[tex] \frac{(n-2)!}{(n-4)!} =12=> \frac{(n-4)!(n-1)(n-2)}{(n-4)!} =12=>(n-1)(n-2)=3\cdot 4=>\\ n=5[/tex]Scrie răspunsul tău aici