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Course: Get ready for AP? Calculus?>?Unit 9
Lesson 5: Geometric series- Geometric series introduction
- Finite geometric series formula
- Worked examples: finite geometric series
- Geometric series formula
- Geometric series word problems: swing
- Geometric series word problems: hike
- Finite geometric series word problems
- Geometric series with sigma notation
- Worked example: finite geometric series (sigma notation)
- Finite geometric series
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Geometric series formula
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Problem
The common ratio of a geometric series is and the sum of the first terms is .
What is the first term of the series?