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OK, so we know what a sequence is --
it's a list of numbers (or other things) that changes according to some
pattern. So, what's a
series? Easy!
A
SERIES is the sum of a sequence.
Here's a
sequence:
Here's the corresponding
series:
We have a special
notation for series.
First, let's get the
formula for the
nth
term of the above sequence...
I think it's
Do you agree? Does
it work?
Find the first five terms
to check.
So, how are we going to
let people know that we want to add up all the terms of this sequence
and make it a series?
We'll use this Greek
letter:
It's an "S" in the
Greek alphabet.
Think of it as an "S" for "sum!"
Continued on the
next
page
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