Question

Summations of series double et produit double

score 49 · Answer 1 · 2026-04-14 06:21:36

49

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Summations of series double et produit double

Published on 14 Apr 2026 - 6:21

score 63 · Answer 2 · 2026-04-15 22:40:11

63

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Unique integer solutions to $\sum\limits_{i=1}^n a_i = A$ when $l \leq a \leq u$ and $a,A,l,u \in \mathbb{N}$

Published on 15 Apr 2026 - 22:40

score 821 · Answer 3 · 2026-04-12 18:34:45

821

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Summation Notation (Discrete Mathematics)

Published on 12 Apr 2026 - 18:34

score 629 · Answer 4 · 2026-04-15 23:16:48

629

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A closed form for $1^{2}-2^{2}+3^{2}-4^{2}+ \cdots + (-1)^{n-1}n^{2}$

Published on 15 Apr 2026 - 23:16

score 79 · Answer 5 · 2026-05-14 06:47:53

79

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Help with simplifying summation

Published on 14 May 2026 - 6:47

score 229 · Answer 6 · 2026-04-13 16:03:49

229

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How to determine sum of an alternating power series and to prove that sum is positive

Published on 13 Apr 2026 - 16:03

score 67 · Answer 7 · 2026-04-14 05:48:31

67

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Why does $\sum_{i=0}^{n-1} \frac{1}{n-i} = \sum_{i=1}^{n }\frac{1}{i}$?

Published on 14 Apr 2026 - 5:48

score 80 · Answer 8 · 2026-04-16 05:23:13

80

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Solving series involving Poisson and Binomial

Published on 16 Apr 2026 - 5:23

score 44 · Answer 9 · 2026-04-11 11:39:45

44

Views

How to find that a number is a sum of multiple of different numbers?

Published on 11 Apr 2026 - 11:39

score 298 · Answer 10 · 2026-04-11 22:48:11

298

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General Term of a given series , Where $\sum^{n}_{r=1}U_r=\frac{3n}{2n+1}$

Published on 11 Apr 2026 - 22:48

score 1.6k · Answer 11 · 2026-04-12 11:06:02

1.6k

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Lest number of terms for a partial sum to estimate sum within error

Published on 12 Apr 2026 - 11:06

score 26.1k · Answer 12 · 2026-04-13 11:56:11

26.1k

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Is there a formula for the binomial expansion of $(a-b)^n$?

Published on 13 Apr 2026 - 11:56

score 327 · Answer 13 · 2026-04-12 15:22:56

327

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Closed form of the summation- $\sum_{r=1}^{n}\frac{r^24^r}{(r+1)(r+2)}$

Published on 12 Apr 2026 - 15:22

score 163 · Answer 14 · 2026-04-15 10:39:18

163

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Does this series converge conditionally $\sum_{n=1}^{\infty}\frac{(-1)^n}{n^{\frac{1}{10}}}$

Published on 15 Apr 2026 - 10:39

score 551 · Answer 15 · 2026-04-13 20:04:55

551

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Proof of the summation $n!=\sum_{k=0}^n \binom{n}{k}(n-k+1)^n(-1)^k$?

Published on 13 Apr 2026 - 20:04

List Question

Summations of series double et produit double

Unique integer solutions to $\sum\limits_{i=1}^n a_i = A$ when $l \leq a \leq u$ and $a,A,l,u \in \mathbb{N}$

Summation Notation (Discrete Mathematics)

A closed form for $1^{2}-2^{2}+3^{2}-4^{2}+ \cdots + (-1)^{n-1}n^{2}$

Help with simplifying summation

How to determine sum of an alternating power series and to prove that sum is positive

Why does $\sum_{i=0}^{n-1} \frac{1}{n-i} = \sum_{i=1}^{n }\frac{1}{i}$?

Solving series involving Poisson and Binomial

How to find that a number is a sum of multiple of different numbers?

General Term of a given series , Where $\sum^{n}_{r=1}U_r=\frac{3n}{2n+1}$

Lest number of terms for a partial sum to estimate sum within error

Is there a formula for the binomial expansion of $(a-b)^n$?

Closed form of the summation- $\sum_{r=1}^{n}\frac{r^24^r}{(r+1)(r+2)}$

Does this series converge conditionally $\sum_{n=1}^{\infty}\frac{(-1)^n}{n^{\frac{1}{10}}}$

Proof of the summation $n!=\sum_{k=0}^n \binom{n}{k}(n-k+1)^n(-1)^k$?

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