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Calculate the Sum of the First n Terms of a Geometric Progression

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Calculate the sum of the first \(k\) terms of an arithmetic progression.
\(a_{0}\) \(=\)
\(r\) \(=\)
\(k\) \(=\)
where:
  • \(a_{0}\) is the first term
  • \(r\) is the common ratio expressed as a fraction
  • \(k\) is the index of the last term \(a_{k}\) to sum

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