Question

Вычислите (6!-4!):5!

Answer 1

$frac{6!-4!}{5!}=frac{4!(5bullet6-1)}{5!}=frac{30-1}{5}=frac{29}{5}.$

Answer 2

(1*2*3*4*5*6-1*2*3*4)/1*2*3*4*5=(720-24)/120=5.8