Question

Showing convergence of an infinite series?

score 45 · Answer 1 · 2019-02-06 15:37:00

45

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Showing convergence of an infinite series?

Published on 06 Feb 2019 - 15:37

score 74 · Answer 2 · 2019-02-06 19:40:13

74

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find the sum of$\sum_{n=1}^{\infty } \frac{4^{n}}{n!\left ( n+2 \right )!}$

Published on 06 Feb 2019 - 19:40

score 327 · Answer 3 · 2026-03-29 10:29:31

327

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Formula for partial sum of binoms: $\sum_{k=0}^{\lfloor n/2 \rfloor} \binom nk \binom mk$

Published on 29 Mar 2026 - 10:29

score 1.5k · Answer 4 · 2026-03-26 03:01:44

1.5k

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Evaluate $\lim_{n\to\infty} \sum_{i=1}^{n} \left[\frac{4}{n} - \frac{i^2}{n^3}\right]$

Published on 26 Mar 2026 - 3:01

score 32 · Answer 5 · 2026-03-25 12:47:33

32

Views

Simplifying large, expanded sums

Published on 25 Mar 2026 - 12:47

score 88 · Answer 6 · 2026-03-25 07:45:17

88

Views

Is there a formula for a summation divided by a product of its terms?

Published on 25 Mar 2026 - 7:45

score 99 · Answer 7 · 2026-03-25 04:41:18

99

Views

Compute $\sum_{k=1}^{25} (\frac{1}{k}-\frac{1}{k+4})$

Published on 25 Mar 2026 - 4:41

score 126 · Answer 8 · 2026-03-26 12:08:29

126

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Proof for $\sum_{r=1}^{n}r(r!)=\sum_{r=1}^{n}[(r+1)!-r!]=(n+1)!-1$

Published on 26 Mar 2026 - 12:08

score 76 · Answer 9 · 2019-02-07 19:00:42

76

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solve the limit of $(y_{n})$, $y_{n}=1+\frac{1}{3^{2}}+...+\frac{1}{(2n-1)^{2}}$

Published on 07 Feb 2019 - 19:00

score 1.3k · Answer 10 · 2019-02-07 23:51:06

1.3k

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Find the sum of $\sum_{n=1}^{\infty} \frac{(-1)^{n-1}}{n^{p}}$

Published on 07 Feb 2019 - 23:51

score 79 · Answer 11 · 2026-03-29 12:04:42

79

Views

Summation of hypergeometric probability multiplied by some factor

Published on 29 Mar 2026 - 12:04

score 62 · Answer 12 · 2026-03-29 04:47:28

62

Views

Expected value of different types of sample means

Published on 29 Mar 2026 - 4:47

score 263 · Answer 13 · 2019-02-08 02:30:12

263

Views

Is there an accepted notation for the $n$th sum/integral of a function?

Published on 08 Feb 2019 - 2:30

score 97 · Answer 14 · 2026-03-25 06:06:31

97

Views

Evaluating $S_n$ where $n=1,2,3,\dots$ and $S_n=\sum_{k=1}^{\infty }\frac{1}{(4k^2-1)^n}$

Published on 25 Mar 2026 - 6:06

score 48 · Answer 15 · 2019-02-08 12:18:58

48

Views

how to find the radius of convergence ? $\sum_{n=1}^{\infty} (\frac{x^n}{n} - \frac{x^{n+1}}{n+1})$

Published on 08 Feb 2019 - 12:18

List Question

Showing convergence of an infinite series?

find the sum of$\sum_{n=1}^{\infty } \frac{4^{n}}{n!\left ( n+2 \right )!}$

Formula for partial sum of binoms: $\sum_{k=0}^{\lfloor n/2 \rfloor} \binom nk \binom mk$

Evaluate $\lim_{n\to\infty} \sum_{i=1}^{n} \left[\frac{4}{n} - \frac{i^2}{n^3}\right]$

Simplifying large, expanded sums

Is there a formula for a summation divided by a product of its terms?

Compute $\sum_{k=1}^{25} (\frac{1}{k}-\frac{1}{k+4})$

Proof for $\sum_{r=1}^{n}r(r!)=\sum_{r=1}^{n}[(r+1)!-r!]=(n+1)!-1$

solve the limit of $(y_{n})$, $y_{n}=1+\frac{1}{3^{2}}+...+\frac{1}{(2n-1)^{2}}$

Find the sum of $\sum_{n=1}^{\infty} \frac{(-1)^{n-1}}{n^{p}}$

Summation of hypergeometric probability multiplied by some factor

Expected value of different types of sample means

Is there an accepted notation for the $n$th sum/integral of a function?

Evaluating $S_n$ where $n=1,2,3,\dots$ and $S_n=\sum_{k=1}^{\infty }\frac{1}{(4k^2-1)^n}$

how to find the radius of convergence ? $\sum_{n=1}^{\infty} (\frac{x^n}{n} - \frac{x^{n+1}}{n+1})$

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