5 Questions
Is the sequence {${\frac{3n}{n+2n}}_{n=1}^{\ ext{inf}}$} bounded, monotonic, and does the limit exist?
Bounded, Monotonic, Limit exists
Is the sequence {${\frac{2^n}{1+2^n}}_{n=0}^{\ ext{inf}}$} bounded, monotonic, and does the limit exist?
Bounded, Not Monotonic, Limit exists
Match the subsequences with their expressions:
Sequence $n$ = {$n}{n=1}^{\ ext{inf}}$ Sequence $\frac{1}{n}$ = {$\frac{1}{n}}{k=1}^{\ ext{inf}}$ Sequence $\frac{3n}{n+2n}$ = {$\frac{3n}{n+2n}}{n=1}^{\ ext{inf}}$ Sequence $\frac{n}{2n}$ = {$\frac{n}{2n}}{n=1}^{\ ext{inf}}$
What is the fourth partial sum $S_4$ of the series $\sum\limits_{n=0}^{\ ext{inf}} (n+1)$?
10
What is the fourth partial sum $S_4$ of the series $\sum\limits_{n=0}^{\ ext{inf}} ln n$?
ln 5
Study Notes
Sequences and Series
Exercise 5: Checking Sequences
- Check whether the sequence is bounded, monotonic, and if the limit exists.
- Two sequences to check:
- ${\frac{3n}{n+2n}}_{n=1}^{\infty}$
- ${\frac{2^n}{1+2^n}}_{n=0}^{\infty}$
Exercise 6: Determining Subsequences
- Determine three subsequences of each sequence.
- Four sequences to determine subsequences for:
- {$n}_{n=1}^{\infty}$
- {$\frac{1}{n}}_{n=1}^{\infty}$
- ${\frac{3n}{n+2n}}_{n=1}^{\infty}$
- ${\frac{n}{2n}}_{n=1}^{\infty}$
Exercise 7: Partial Sums of Series
- Determine the fourth partial sum $S_4$ of the series.
- Two series to find the fourth partial sum for:
- $\sum\limits_{n=0}^{\infty} (n+1)$
- $\sum\limits_{n=0}^{\infty } ln n$
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