The sequence is given by:
a(1) = 2
a(n) = a(n-1) - 2
I put perenthesis around n and n-1 to signify that they are denoted from a.
What threw me off on this problem was the a(n-1) -2 . I know I have to incorporate a(1) = 2 into this formula somehow, but I don't know how. Any help would be great. Thx.
a(1) = 2
a(n) = a(n-1) - 2
I put perenthesis around n and n-1 to signify that they are denoted from a.
What threw me off on this problem was the a(n-1) -2 . I know I have to incorporate a(1) = 2 into this formula somehow, but I don't know how. Any help would be great. Thx.