Question

Fatorial de:
15!+13!/14!.12!

Answer 1

54 ?  eu  acho  nao  sei  

Answer 2

15!+13!/14!*12!

15*14*13*12!+13*12!/14!*12!

12!(15*14*13+13)/14!*12!
cancelando 12! com 12!
(15*14*13+13)/14!
13(15*14+1)/14!
13(15*14+1)/14*13*12!
cancelando 13 com 13
(15*14+1)/14*12!
211/14*12!

=211/14*12!