Convergence of a Sequence: How to Determine and Find the Limit?

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SUMMARY

The sequence defined by a1 = α (where α > 0) and an+1 = 6 * (an + 1) / (an + 7) converges to the limit of 2, provided it is shown to be monotonic and bounded within the interval [0, 6]. The discussion emphasizes the importance of demonstrating the monotonicity of the sequence to establish convergence rigorously. The sequence's behavior is crucial for determining its limit based on the initial value α.

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  • Knowledge of boundedness and monotonicity concepts
  • Familiarity with convergence criteria for sequences
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  • Study the properties of monotonic sequences in calculus
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Homework Statement


Check whether the sequence [itex]a_{1}=\alpha ,\alpha > 0, a_{n+1}=6*\frac{a_{n}+1}{a_{n}+7}[/itex] converges and find its limit if it does, depending on α.


Homework Equations





The Attempt at a Solution


I showed boundedness([0,6]) and found that in the case of convergence the limit is 2, but I don't know how to check its convergence... Any help is appreciated :)
 
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Show it's monotone.
 

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