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Ch. 10 - Sequences and Infinite Series
Briggs - Calculus: Early Transcendentals 3rd Edition
Briggs3rd EditionCalculus: Early TranscendentalsISBN: 9780136847243Non è quello che usi tu?Cambia libro di testo
Capitolo 10, Problema 10.2.39

13–52. Limits of sequences
Find the limit of the following sequences or determine that the sequence diverges.


{(1 + (2 / n))ⁿ}

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1
Identify the given sequence as \( a_n = \left(1 + \frac{2}{n}\right)^n \).
Recall the important limit definition related to sequences of the form \( \left(1 + \frac{x}{n}\right)^n \), which approaches \( e^x \) as \( n \to \infty \).
In this problem, recognize that \( x = 2 \), so the sequence resembles \( \left(1 + \frac{2}{n}\right)^n \).
Apply the limit property: \( \lim_{n \to \infty} \left(1 + \frac{2}{n}\right)^n = e^2 \).
Conclude that the sequence converges and its limit is \( e^2 \).

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