Hi, The question I have is:
Express a single generality that generalises all three related observations that
and show that your generalisation always holds true.
I know that the answer (i.e. RHS of =) is always (supposed to say no. of different terms)
I also know that LHS is , where a=1
but I'm not sure how to show all of this generally, so that it works for every case . Any ideas?