Question

Probability to get the HHT sequence for the first time after n coin flip

score 224 · Answer 1 · 2026-04-15 17:57:06

224

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Probability to get the HHT sequence for the first time after n coin flip

Published on 15 Apr 2026 - 17:57

score 32 · Answer 2 · 2026-04-14 10:15:03

32

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Looking for a formula to find each pair of previous sums in an incremental series that will equal the next sum in the sequence

Published on 14 Apr 2026 - 10:15

score 3k · Answer 3 · 2026-04-11 15:17:20

3k

Views

Proof that the set of subsequential limits is closed

Published on 11 Apr 2026 - 15:17

score 99 · Answer 4 · 2026-04-11 19:36:23

99

Views

Limit of Integral of Continuous Function times monomoial

Published on 11 Apr 2026 - 19:36

score 56 · Answer 5 · 2026-04-15 12:40:45

56

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Let $f\colon\mathbb{R}\to\mathbb{R}$ be continuous. If $f(r)=0$ for $r\in\mathbb{Q}$. Show that $f=0$.

Published on 15 Apr 2026 - 12:40

score 196 · Answer 6 · 2026-04-09 13:37:23

196

Views

Convergence of $\sum_{n=1}^{\infty} \frac{1}{n} \sin\bigl( \frac{x^2}{n} \bigr)$.

Published on 09 Apr 2026 - 13:37

score 232 · Answer 7 · 2026-04-20 08:31:39

232

Views

Is there an intuitive way of thinking why a rearranged conditionally convergent series yields different results?

Published on 20 Apr 2026 - 8:31

score 228 · Answer 8 · 2026-04-09 13:36:55

228

Views

How to show pointwise and uniform convergence of specific series

Published on 09 Apr 2026 - 13:36

score 351 · Answer 9 · 2026-04-23 11:55:13

351

Views

Conditional convergence of a series involving $sin n \theta$

Published on 23 Apr 2026 - 11:55

score 245 · Answer 10 · 2026-04-15 20:09:28

245

Views

Square-free integers in the sequence $n^{\operatorname{rad}(n)}+\operatorname{rad}(n)+1$

Published on 15 Apr 2026 - 20:09

score 36 · Answer 11 · 2026-04-16 09:28:11

36

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Limits of two variables $\lim_{t \rightarrow \infty} \lim_{u \rightarrow t} u^{\alpha} \sqrt{t-u} = 0$

Published on 16 Apr 2026 - 9:28

score 87 · Answer 12 · 2026-04-29 12:52:39

87

Views

Given a boolen hash function (based on XOR), find the $n^{th}$ key for a specific hash.

Published on 29 Apr 2026 - 12:52

score 171 · Answer 13 · 2026-04-14 06:03:06

171

Views

Some nice theorem to find the value of serie

Published on 14 Apr 2026 - 6:03

score 103 · Answer 14 · 2026-04-14 09:19:20

103

Views

Proof for: $x \in \overline{A} \iff (x_n)_n$ exists in $A$ with $x_n \to x$

Published on 14 Apr 2026 - 9:19

score 1.2k · Answer 15 · 2026-04-10 10:32:20

1.2k

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Using the Cauchy root test

Published on 10 Apr 2026 - 10:32

List Question

Probability to get the HHT sequence for the first time after n coin flip

Looking for a formula to find each pair of previous sums in an incremental series that will equal the next sum in the sequence

Proof that the set of subsequential limits is closed

Limit of Integral of Continuous Function times monomoial

Let $f\colon\mathbb{R}\to\mathbb{R}$ be continuous. If $f(r)=0$ for $r\in\mathbb{Q}$. Show that $f=0$.

Convergence of $\sum_{n=1}^{\infty} \frac{1}{n} \sin\bigl( \frac{x^2}{n} \bigr)$.

Is there an intuitive way of thinking why a rearranged conditionally convergent series yields different results?

How to show pointwise and uniform convergence of specific series

Conditional convergence of a series involving $sin n \theta$

Square-free integers in the sequence $n^{\operatorname{rad}(n)}+\operatorname{rad}(n)+1$

Limits of two variables $\lim_{t \rightarrow \infty} \lim_{u \rightarrow t} u^{\alpha} \sqrt{t-u} = 0$

Given a boolen hash function (based on XOR), find the $n^{th}$ key for a specific hash.

Some nice theorem to find the value of serie

Proof for: $x \in \overline{A} \iff (x_n)_n$ exists in $A$ with $x_n \to x$

Using the Cauchy root test

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