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How to calculate the sum of a series, whose next value is dependent on the previous value?

score 1.3k · Answer 1 · 2026-05-11 01:36:19

1.3k

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How to calculate the sum of a series, whose next value is dependent on the previous value?

Published on 11 May 2026 - 1:36

score 334 · Answer 2 · 2026-03-26 08:00:26

334

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If the sum of the first n terms of an Arithmetic Progression is equal to $n^2 + 3n$

Published on 26 Mar 2026 - 8:00

score 206 · Answer 3 · 2026-03-26 07:59:00

206

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If it is Arithmetic Progression then find the value of s?

Published on 26 Mar 2026 - 7:59

score 90 · Answer 4 · 2026-03-26 07:55:04

90

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Finding an array index mathematically [noob]

Published on 26 Mar 2026 - 7:55

score 69 · Answer 5 · 2026-03-26 08:03:48

69

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Interlacing with arithmetic progressions?

Published on 26 Mar 2026 - 8:03

score 236 · Answer 6 · 2026-03-26 09:39:20

236

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Arithmetic Progression with many answers

Published on 26 Mar 2026 - 9:39

score 56 · Answer 7 · 2026-03-26 11:17:32

56

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Name to a progression with the general term $a_n=a+d\cdot n(n+1)$

Published on 26 Mar 2026 - 11:17

score 88 · Answer 8 · 2026-03-26 07:58:51

88

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Question about arithmetic progression. stuck on one of the answers

Published on 26 Mar 2026 - 7:58

score 954 · Answer 9 · 2026-03-26 09:42:40

954

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Sum of all the numbers in the grid.

Published on 26 Mar 2026 - 9:42

score 51 · Answer 10 · 2026-03-26 09:37:06

51

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Arithmetic Progression Sum of Sequence

Published on 26 Mar 2026 - 9:37

score 7.7k · Answer 11 · 2026-05-10 16:32:59

7.7k

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Sum of even numbers N?

Published on 10 May 2026 - 16:32

score 431 · Answer 12 · 2026-03-26 07:57:03

431

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How to sum all odd numbers in range?

Published on 26 Mar 2026 - 7:57

score 102 · Answer 13 · 2026-03-26 11:17:42

102

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If $a,b,c$ are positives such that $a+b+c=\pi/2$ and $\cot(a),\cot(b),\cot(c)$ is in arithmetic progression, find $\cot(a)\cot(c)$

Published on 26 Mar 2026 - 11:17

score 267 · Answer 14 · 2026-03-26 07:57:43

267

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Intuition behind Erdős conjecture on arithmetic progressions

Published on 26 Mar 2026 - 7:57

score 80 · Answer 15 · 2026-05-11 01:36:14

80

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If $p$th, $q$th, $r$th and $s$th terms of an A.P are in G.P. Then show $p-q$, $q-r$, $r-2$ are also in G.P.

Published on 11 May 2026 - 1:36

List Question

How to calculate the sum of a series, whose next value is dependent on the previous value?

If the sum of the first n terms of an Arithmetic Progression is equal to $n^2 + 3n$

If it is Arithmetic Progression then find the value of s?

Finding an array index mathematically [noob]

Interlacing with arithmetic progressions?

Arithmetic Progression with many answers

Name to a progression with the general term $a_n=a+d\cdot n(n+1)$

Question about arithmetic progression. stuck on one of the answers

Sum of all the numbers in the grid.

Arithmetic Progression Sum of Sequence

Sum of even numbers N?

How to sum all odd numbers in range?

If $a,b,c$ are positives such that $a+b+c=\pi/2$ and $\cot(a),\cot(b),\cot(c)$ is in arithmetic progression, find $\cot(a)\cot(c)$

Intuition behind Erdős conjecture on arithmetic progressions

If $p$th, $q$th, $r$th and $s$th terms of an A.P are in G.P. Then show $p-q$, $q-r$, $r-2$ are also in G.P.

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