Chapter 11: Problem 25
State whatever the sequence converges and, if it does, find the limit. $$\ln n-\ln (n+1)$$
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Chapter 11: Problem 25
State whatever the sequence converges and, if it does, find the limit. $$\ln n-\ln (n+1)$$
These are the key concepts you need to understand to accurately answer the question.
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Give the first six terms of the sequence and then give the \(n\) th term. $$a_{1}=3 ; \quad a_{n+1}=4-a_{n}$$.
Find the indicated limit.$$\begin{aligned}&\lim _{n \rightarrow \infty} \frac{1^{3}+2^{3}+\cdots+n^{3}}{2 n^{4}+n-1}\\\&\text { HINT: } \quad 1^{3}+2^{3}+\cdots+n^{3}=\frac{n^{2}(n+1)^{2}}{4} \end{aligned}$$.
Use mathematical induction to prove the following assertions. If \(a_{1}=3\) and \(a_{n+1}=a_{n}+5,\) then \(a_{n}=5 n-2\).
Let \(S\) be a bounded set of real numbers and suppose that lub \(S=\mathrm{glb} S .\) What can you conclude about \(S ?\)
Find the indicated limit.$$\begin{aligned}&\lim _{n \rightarrow \infty} \frac{1^{2}+2^{2}+\cdots+n^{2}}{(1+n)(2+n)}\\\&\text { HINT: } \quad 1^{2}+2^{2}+\cdots+n^{2}=\frac{n(n+1)(2 n+1)}{6} \end{aligned}$$.
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