Question

Sum of terms of an arithmetic progression.

score 44 · Answer 1 · 2020-05-04 14:14:08

44

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Sum of terms of an arithmetic progression.

Published on 04 May 2020 - 14:14

score 65 · Answer 2 · 2020-05-04 15:01:13

65

Views

Average value of $x_1x_2+x_2x_3+x_3x_4+\cdots+x_{10}x_1$

Published on 04 May 2020 - 15:01

score 48 · Answer 3 · 2020-05-05 04:35:20

48

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What are some advanced techniques for matching sequences to a formula?

Published on 05 May 2020 - 4:35

score 81 · Answer 4 · 2026-02-23 06:35:02

81

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Do lucky numbers contain arbitrarily long arithmetic progressions?

Published on 23 Feb 2026 - 6:35

score 43 · Answer 5 · 2026-03-25 22:01:59

43

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Infinite Harmonic Progression

Published on 25 Mar 2026 - 22:01

score 38 · Answer 6 · 2020-05-09 13:10:09

38

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How many ways of selection?

Published on 09 May 2020 - 13:10

score 919 · Answer 7 · 2020-05-24 20:26:43

919

Views

A sequence includes $a_p=\sqrt2$, $a_q=\sqrt3$, $a_r=\sqrt5$ for some $1\leq p<q<r$. Can these be terms of an arithmetic progression? harmonic?

Published on 24 May 2020 - 20:26

score 83 · Answer 8 · 2020-05-25 21:29:49

83

Views

What can be said about $a,b,c$ or $(b+c),(c+a),(a+b)$ if three real numbers $a,b,c$ are such that $a^2,b^2,c^2$ are terms of an AP?

Published on 25 May 2020 - 21:29

score 132 · Answer 9 · 2020-05-28 13:24:27

132

Views

General term formula for combination of arithmetic and geometric progressions

Published on 28 May 2020 - 13:24

score 216 · Answer 10 · 2026-03-26 01:02:10

216

Views

Trigonometry of geometric and arithmetic progressions

Published on 26 Mar 2026 - 1:02

score 367 · Answer 11 · 2020-05-31 17:52:11

367

Views

How many numbers are there that appear in at least one of the arithmetic sequences $10,16,22,28,\ldots,1000$ and $10,21,32,43,\ldots,1000?$

Published on 31 May 2020 - 17:52

score 37 · Answer 12 · 2020-06-03 09:19:57

37

Views

Proof for arithmetic progression with different indices

Published on 03 Jun 2020 - 9:19

score 35 · Answer 13 · 2020-06-04 12:33:08

35

Views

Arithmetic Sequences on Prime numbers

Published on 04 Jun 2020 - 12:33

score 89 · Answer 14 · 2020-06-09 08:35:21

89

Views

Is this proof of a harmonic progression question correct?

Published on 09 Jun 2020 - 8:35

score 36 · Answer 15 · 2020-06-15 15:17:44

36

Views

First member and common difference of arithmetic sequence given the following two equations

Published on 15 Jun 2020 - 15:17

List Question

Sum of terms of an arithmetic progression.

Average value of $x_1x_2+x_2x_3+x_3x_4+\cdots+x_{10}x_1$

What are some advanced techniques for matching sequences to a formula?

Do lucky numbers contain arbitrarily long arithmetic progressions?

Infinite Harmonic Progression

How many ways of selection?

A sequence includes $a_p=\sqrt2$, $a_q=\sqrt3$, $a_r=\sqrt5$ for some $1\leq p<q<r$. Can these be terms of an arithmetic progression? harmonic?

What can be said about $a,b,c$ or $(b+c),(c+a),(a+b)$ if three real numbers $a,b,c$ are such that $a^2,b^2,c^2$ are terms of an AP?

General term formula for combination of arithmetic and geometric progressions

Trigonometry of geometric and arithmetic progressions

How many numbers are there that appear in at least one of the arithmetic sequences $10,16,22,28,\ldots,1000$ and $10,21,32,43,\ldots,1000?$

Proof for arithmetic progression with different indices

Arithmetic Sequences on Prime numbers

Is this proof of a harmonic progression question correct?

First member and common difference of arithmetic sequence given the following two equations

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