Question

Finding the discriminant of a quadratic equation from the given information on the roots of a quadratic equation

score 198 · Answer 1 · 2026-03-26 10:42:20

198

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Finding the discriminant of a quadratic equation from the given information on the roots of a quadratic equation

Published on 26 Mar 2026 - 10:42

score 705 · Answer 2 · 2021-07-02 20:08:05

705

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Alternative proofs of convergence of geometric series

Published on 02 Jul 2021 - 20:08

score 120 · Answer 3 · 2026-03-26 11:11:16

120

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Generalization of the geometric series to multiple variables using Lyndon words

Published on 26 Mar 2026 - 11:11

score 222 · Answer 4 · 2021-07-13 23:51:51

222

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If you invest $\$10$ at beginning of each month for $10$ years, how much will you have at end of the $10$ years?

Published on 13 Jul 2021 - 23:51

score 83 · Answer 5 · 2021-07-14 03:40:17

83

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Can the series $\sum_{r=0}^{\infty}\frac{e^{-r}}{1+r}$ be further simplified?

Published on 14 Jul 2021 - 3:40

score 80 · Answer 6 · 2021-07-17 22:45:59

80

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Recover an unknown geometric sequence from $s(n)=\frac{1-r^{\frac{n}{2}+1}}{1-r}$

Published on 17 Jul 2021 - 22:45

score 119 · Answer 7 · 2021-07-20 21:08:11

119

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Can $\log_{10}{x}, \ln(x), x$ form a geometric sequence?

Published on 20 Jul 2021 - 21:08

score 63 · Answer 8 · 2021-08-01 18:21:04

63

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On computing $\sum_{k\geq0}(k+1)x^{k}$

Published on 01 Aug 2021 - 18:21

score 178 · Answer 9 · 2021-08-03 00:49:26

Is it just a coincidence that the solution to $y=x$, $y=mx+b$ ($m<1$) is the sum of an infinite geometric series with first term $b$ and ratio $m$?

score 102 · Answer 10 · 2021-08-12 07:05:38

102

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Arithmetic and Geometric Sequence (Progression)

Published on 12 Aug 2021 - 7:05

score 96 · Answer 11 · 2021-08-13 14:45:17

96

Views

Why does $x^n = \left[(x-1)\sum\limits_{k=0}^{n-1}x^k\right]+1$?

Published on 13 Aug 2021 - 14:45

score 60 · Answer 12 · 2021-08-13 17:05:28

60

Views

Calculate starting value of geometric progression

Published on 13 Aug 2021 - 17:05

score 63 · Answer 13 · 2026-03-28 11:33:28

63

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How to describe this (paradoxical) motion by the hidden geometric series?

Published on 28 Mar 2026 - 11:33

score 1.3k · Answer 14 · 2021-08-30 13:42:48

General solution to: Two players alternately flip a coin which may be biased: What is the probability of winning by getting a head?

score 54 · Answer 15 · 2026-03-26 13:43:51

54

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the number of solutions to polynomial

Published on 26 Mar 2026 - 13:43

List Question

Finding the discriminant of a quadratic equation from the given information on the roots of a quadratic equation

Alternative proofs of convergence of geometric series

Generalization of the geometric series to multiple variables using Lyndon words

If you invest $\$10$ at beginning of each month for $10$ years, how much will you have at end of the $10$ years?

Can the series $\sum_{r=0}^{\infty}\frac{e^{-r}}{1+r}$ be further simplified?

Recover an unknown geometric sequence from $s(n)=\frac{1-r^{\frac{n}{2}+1}}{1-r}$

Can $\log_{10}{x}, \ln(x), x$ form a geometric sequence?

On computing $\sum_{k\geq0}(k+1)x^{k}$

Is it just a coincidence that the solution to $y=x$, $y=mx+b$ ($m<1$) is the sum of an infinite geometric series with first term $b$ and ratio $m$?

Arithmetic and Geometric Sequence (Progression)

Why does $x^n = \left[(x-1)\sum\limits_{k=0}^{n-1}x^k\right]+1$?

Calculate starting value of geometric progression

How to describe this (paradoxical) motion by the hidden geometric series?

General solution to: Two players alternately flip a coin which may be biased: What is the probability of winning by getting a head?

the number of solutions to polynomial

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