Interesting convergence of sequence

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The discussion revolves around the sequence defined by a recurrence relation, where the initial term is in the interval (0,1). Participants are asked whether the limit of the product of n and the sequence term, na_n, exists as n approaches infinity, and if so, to calculate it. One user expresses a desire to see alternative solutions without providing their own, which is met with criticism for not adhering to the forum's collaborative spirit. The conversation emphasizes the importance of contributing personal attempts before seeking help. Overall, the focus is on understanding the behavior of the sequence and the limit's existence.
grusini
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Homework Statement


Let (a_n)_{n\in\mathbb{N}} be a real sequence such that a_0\in(0,1) and a_{n+1}=a_n-a_n^2
Does \lim_{n\rightarrow\infty}na_n exist? If yes, calculate it.

Homework Equations





The Attempt at a Solution


I have a solution but I'd like to see other solutions..
 
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grusini said:

Homework Statement


Let (a_n)_{n\in\mathbb{N}} be a real sequence such that a_0\in(0,1) and a_{n+1}=a_n-a_n^2
Does \lim_{n\rightarrow\infty}na_n exist? If yes, calculate it.

Homework Equations





The Attempt at a Solution


I have a solution but I'd like to see other solutions..

Asking for a solution when you haven't shown your own goes against the general spirit of the homework help forum. Try another forum if you don't want to show your own proof.
 
Question: A clock's minute hand has length 4 and its hour hand has length 3. What is the distance between the tips at the moment when it is increasing most rapidly?(Putnam Exam Question) Answer: Making assumption that both the hands moves at constant angular velocities, the answer is ## \sqrt{7} .## But don't you think this assumption is somewhat doubtful and wrong?

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