In this lecture you will learn about Geometric Series and the Common Ratio. After, you will cover the Sum of Geometric Series as well as Sigma Notation, Another Sum Formula, and finishing with Specific Terms.
There are 2
formulas for the sum. Use one if you are given n. Use the other if
you are given an. In both cases, you will be given the
values of r and a1.
To find a
particular term of a series, say the 4th term, you first
need to find the first term using the formula for Sn.
Then multiply the first term by r3, using the formula for
the nth term of a series, an = a1rn-1.
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.