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## Discussion

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### Arithmetic Series

There are two formulas for the sum. Use one if you are given d and the other if you are given a

_{n}. In both cases, you will be given the values of a_{1}and n.In some problems, you must first use the formula for the sum and then the formula for the nth term.

### Arithmetic Series

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.

- Intro 0:00
- What are Arithmetic Series? 0:22
- Example: Sequence
- Example: Common Difference (d)
- Sum of Arithmetic Series 2:52
- Example
- Sigma Notation 6:10
- Example
- Lecture Example 1 8:32
- Lecture Example 2 12:39
- Additional Example 3
- Additional Example 4

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