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### Course: Algebra 2 (Eureka Math/EngageNY) > Unit 3

Lesson 12: Topic E: Lesson 29: Geometric series- Summation notation
- Summation notation intro
- Geometric series intro
- Geometric series with sigma notation
- Finite geometric series formula
- Worked example: finite geometric series (sigma notation)
- Worked examples: finite geometric series
- Finite geometric series
- Finite geometric series word problem: social media
- Finite geometric series word problem: mortgage
- Finite geometric series word problems

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# Summation notation intro

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