Math Problem Statement

show that the sequence n+1/n converges

Solution

To determine whether the sequence an=n+1na_n = n + \frac{1}{n} converges, we must find its limit as nn approaches infinity.

Step 1: Identify the Sequence

The sequence is given by: an=n+1na_n = n + \frac{1}{n}

Step 2: Compute the Limit

As nn approaches infinity, we examine the behavior of each term in the sequence: limnan=limn(n+1n)\lim_{n \to \infty} a_n = \lim_{n \to \infty} \left(n + \frac{1}{n}\right)

The term 1n\frac{1}{n} approaches 0 as nn becomes large. However, the term nn increases without bound as nn approaches infinity. So: limnan=\lim_{n \to \infty} a_n = \infty

Step 3: Conclusion

Since limnan=\lim_{n \to \infty} a_n = \infty, the sequence an=n+1na_n = n + \frac{1}{n} does not converge to a finite value. Instead, it diverges to infinity.

Would you like more details, or do you have any other questions?

Here are some related questions:

  1. What is the difference between divergent and convergent sequences?
  2. How can you prove that a sequence diverges to infinity?
  3. Are there any sequences that oscillate rather than converge or diverge?
  4. What happens to the sequence 1n\frac{1}{n} as nn approaches infinity?
  5. How does one determine the convergence or divergence of a series?

Tip: When evaluating the convergence of a sequence, observe how each term behaves as nn becomes very large. If the terms increase without bound, the sequence diverges.

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Math Problem Analysis

Mathematical Concepts

Sequences
Limit of a Sequence
Convergence and Divergence

Formulas

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Theorems

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Suitable Grade Level

Advanced High School