Germany Olympiad Mathematics | How Does One Solve This

[@KevnConnrr]

very good solution

[@learnmathswith_fortune]

@@KevnConnrr thank you

[@theaftgamer5541]

maybe there is a little mistake in 0:42 you wrote n-n=0 now if you multiply anything by 0 is equal to 0 the right maybe always 1 because it will as n-(n-1)= n-n+1 is always 1 (correct me if im wrong)

[@learnmathswith_fortune]

@@theaftgamer5541 (n-n)! =0! =1

[@learnmathswith_fortune]

@@theaftgamer5541 you get it?

[@theaftgamer5541]

@@learnmathswith_fortune thanks

[@learnmathswith_fortune]

@theaftgamer5541 you're welcome... Hope you're subscribed Have a nice rest of your day