So I looked at this question and thought, "Hmm, I might be able to use the infinite geometric series formula." Then, I realised that the common ratio would involve the counting variable, which I don't think is allowed. Then I thought, "There must be a formula for when the ratio changes by a fixed amount each time." So is there a formula for this? Does this involve harmonic means?
2026-03-27 16:27:31.1774628851
What is the formula for an infinite geometric series when the common ratio changes by a fixed amount?
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