We start the table at 1 since the recursive sequence begins at n = 1 and ∆Tbl = 1 because
the domain of the sequence is the positive integers. Now press TABLE to obtain:
w
EXAMPLE 12 Using a Graphing Utility to Find the Sum of a Sequence
Using a graphing utility, find the sum of the sequence
5
1
3
k
k
=
∑
SOLUTION
Press 2
nd
STAT to obtain the LIST menu. Then highlight MATH as shown and select
5:sum(. You should have sum( on your HOME screen as shown.
Again press 2
nd
STAT to obtain the LIST menu, but now highlight the OPS menu and
select 5:seq( so you have sum(seq( on the HOME screen.
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