[DTube] Geometric Series: Deriving the Summation Formulas

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In this video, we derive the formulas for summing a geometric series, firstly to the nth term and then to infinity.

The formulas are:

1. S_n = a(rⁿ - 1) / r - 1

2. S_∞ = a / r - 1

We also discuss the concept of convergence and divergence for the geometric series.

Sequences & Series

1. What are Geometric Sequences?
2. Modelling Price Inflation with Geometric Sequences
3. Geometric Sequences: Find the 4th term given the 7th term
4. Geometric Sequences: Find the first term and common ratio
5. Geometric Sequences: The Geometric Mean
6. Geometric Series: Deriving the Summation Formulas

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