9.3: Geometric Sequences and Series - Mathematics LibreTexts
https://math.libretexts.org/Bookshelves/Algebra/Advanced_Algebra/09%3A_Sequences_Series_and_the_Binomial_Theorem/9.03%3A_Geometric_Sequences_and_Series
WebMar 22, 2024 · Key Takeaways. A geometric sequence is a sequence where the ratio r between successive terms is constant. The general term of a geometric sequence can be written in terms of its first term a1, common ratio r, and index n as follows: an = a1rn − 1. A geometric series is the sum of the terms of a geometric sequence.
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