Infinite Sequences and SeriesIf lim⁡n→∞an≠0\lim_{n \to \infty} a_n \neq 0, then ∑an\sum a_n diverges.
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If lim⁡n→∞an≠0\lim_{n \to \infty} a_n \neq 0, then ∑an\sum a_n diverges.

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Last Updated: September 2026

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