Question

fatorial de 15! -14! ÷ 13!

Answer 1

$\dfrac{15!~-~14!}{13!}~=\\\\\\=~\dfrac{15~.~14~.~13!~-~14~.~13!}{13!}\\\\\\=~\dfrac{13!~.~14~.~(15~-~1)}{13!}\\\\\\=~\dfrac{14~.~14}{1}\\\\\\=~\boxed{196}$