Question

How to show ${_2F_1}\left(-\frac{19}{20}, \frac{11}{30}; -\frac{19}{30}; -2\right)$ is zero.

score 130 · Answer 1 · 2026-03-28 14:44:14

130

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How to show ${_2F_1}\left(-\frac{19}{20}, \frac{11}{30}; -\frac{19}{30}; -2\right)$ is zero.

Published on 28 Mar 2026 - 14:44

score 54 · Answer 2 · 2026-03-24 08:18:14

54

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Generalized solution to popular "Wires in elevator shaft brainteaser"

Published on 24 Mar 2026 - 8:18

score 41 · Answer 3 · 2026-03-26 05:54:21

41

Views

Are there numbers that have loop of 3 or more when adding their factors?

Published on 26 Mar 2026 - 5:54

score 112 · Answer 4 · 2026-03-28 11:15:10

112

Views

sums and differences of perfect powers

Published on 28 Mar 2026 - 11:15

score 182 · Answer 5 · 2026-03-26 09:32:47

182

Views

A game of investment - maximizing the chances of winning

Published on 26 Mar 2026 - 9:32

score 42 · Answer 6 · 2026-03-26 17:36:18

42

Views

Can you find a function that follows a rule while rational and it's differentiable everywhere? (relates to the Pythagorean theorem)

Published on 26 Mar 2026 - 17:36

score 198 · Answer 7 · 2026-03-25 12:54:25

198

Views

Can you find a function $\beta(x)$ where if $a+b=n^m$ then $\beta(\frac{a}{b})$ is irrational?

Published on 25 Mar 2026 - 12:54

score 704 · Answer 8 · 2026-03-26 04:35:07

704

Views

Given an $n\times n\times n$ cube, what is the largest number of $1\times 1\times 1$ blocks that a plane can cut through?

Published on 26 Mar 2026 - 4:35

score 90 · Answer 9 · 2020-07-20 12:09:14

90

Views

Is function $g(x) = e^{f(x)}$ is always differentiable $\forall~ x \in $ domain of $f(x)$ if $f(x)$ is differentiable in it's domain?

Published on 20 Jul 2020 - 12:09

score 1.2k · Answer 10 · 2020-07-20 18:09:53

1.2k

Views

What is the largest number of row operations required to row reduce an $n \times n$ matrix efficiently?

Published on 20 Jul 2020 - 18:09

score 517 · Answer 11 · 2026-03-25 17:40:27

517

Views

Finding Periodic/Fixed Points in the Julia Sets close to the Period-3 Cardioid

Published on 25 Mar 2026 - 17:40

score 1.4k · Answer 12 · 2020-07-20 23:56:06

1.4k

Views

Does the probability of guessing a perfect multiple choice test score increase by taking the test multiple times?

Published on 20 Jul 2020 - 23:56

score 17k · Answer 13 · 2020-07-21 06:28:31

17k

Views

Forming a 3x3 magic square with digits 1-9, subject to the constraint that sum of digits in each row, column and diagonal must be equal.

Published on 21 Jul 2020 - 6:28

score 390 · Answer 14 · 2026-03-26 02:55:09

390

Views

Rotating a quarter circle -- how long has a point traveled.

Published on 26 Mar 2026 - 2:55

score 1.6k · Answer 15 · 2020-07-22 16:43:42

1.6k

Views

How can I convert this python code into Mathematical notation?

Published on 22 Jul 2020 - 16:43

List Question

How to show ${_2F_1}\left(-\frac{19}{20}, \frac{11}{30}; -\frac{19}{30}; -2\right)$ is zero.

Generalized solution to popular "Wires in elevator shaft brainteaser"

Are there numbers that have loop of 3 or more when adding their factors?

sums and differences of perfect powers

A game of investment - maximizing the chances of winning

Can you find a function that follows a rule while rational and it's differentiable everywhere? (relates to the Pythagorean theorem)

Can you find a function $\beta(x)$ where if $a+b=n^m$ then $\beta(\frac{a}{b})$ is irrational?

Given an $n\times n\times n$ cube, what is the largest number of $1\times 1\times 1$ blocks that a plane can cut through?

Is function $g(x) = e^{f(x)}$ is always differentiable $\forall~ x \in $ domain of $f(x)$ if $f(x)$ is differentiable in it's domain?

What is the largest number of row operations required to row reduce an $n \times n$ matrix efficiently?

Finding Periodic/Fixed Points in the Julia Sets close to the Period-3 Cardioid

Does the probability of guessing a perfect multiple choice test score increase by taking the test multiple times?

Forming a 3x3 magic square with digits 1-9, subject to the constraint that sum of digits in each row, column and diagonal must be equal.

Rotating a quarter circle -- how long has a point traveled.

How can I convert this python code into Mathematical notation?

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