The another way is to do not make capital A,B,C,against just show that |a-b| b-c| |a-c| goes to zero then obviously their value the same in the limit.So we can still do this trick with (C-A)/2^n but with (c-a)/2^n.
But i think those it is more intuitive.
Негізгі бет Uunusual sequence with 3 variables and its limit
Пікірлер