Question

Restriction of function

score 146 · Answer 1 · 2026-04-11 00:23:44

146

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Restriction of function

Published on 11 Apr 2026 - 0:23

score 155 · Answer 2 · 2026-03-24 22:07:34

155

Views

Is there an easy way to decide the sign of $\sqrt x \ln (x + 1) - \sqrt {x + 1} \ln x$?

Published on 24 Mar 2026 - 22:07

score 366 · Answer 3 · 2026-04-10 19:28:32

366

Views

Mean value of a function over $R$

Published on 10 Apr 2026 - 19:28

score 252 · Answer 4 · 2026-04-05 21:30:20

252

Views

Calculating limit $\lim\limits_{x\to\infty}\frac{3x^2-\frac{3}{x^2+1}-4f'(x)}{f(x)}$ for an unknown function.

Published on 05 Apr 2026 - 21:30

score 51 · Answer 5 · 2026-03-24 20:33:22

51

Views

For a surjective function $f: A \rightarrow A$, if there exist $n$ such that $\ker f^n = \ker f^{n+1} = \dots$ Is f injective?

Published on 24 Mar 2026 - 20:33

score 85 · Answer 6 · 2026-04-10 04:41:52

85

Views

Meaning of infinity in $f:\mathbb R^n\rightarrow \mathbb R\cup \{\pm\infty\}$?

Published on 10 Apr 2026 - 4:41

score 1.4k · Answer 7 · 2026-04-09 02:02:03

1.4k

Views

Is the average of a quotient ever the quotient of the averages?

Published on 09 Apr 2026 - 2:02

score 74 · Answer 8 · 2026-03-26 11:04:13

74

Views

$\Bbb{R}_\ell$ is Lindelöf...Why is this Map Well-defined?

Published on 26 Mar 2026 - 11:04

score 1k · Answer 9 · 2026-04-08 20:49:25

1k

Views

Plot function y = tan(yx)

Published on 08 Apr 2026 - 20:49

score 59 · Answer 10 · 2026-03-25 01:13:20

59

Views

Inconsistent set theoretic notation for expressing function/sequence spaces

Published on 25 Mar 2026 - 1:13

score 43 · Answer 11 · 2026-03-17 21:50:08

43

Views

Function for a series of numbers like Normal/Laplace Distribution function

Published on 17 Mar 2026 - 21:50

score 293 · Answer 12 · 2026-03-31 18:40:57

293

Views

Range of Even Function

Published on 31 Mar 2026 - 18:40

score 245 · Answer 13 · 2026-04-10 10:42:14

245

Views

Concave function - proof

Published on 10 Apr 2026 - 10:42

score 49 · Answer 14 · 2026-04-09 00:05:59

49

Views

Topology generated by $\mathbb{R}$-valued functions of vanishing variation

Published on 09 Apr 2026 - 0:05

score 75 · Answer 15 · 2026-04-09 00:26:54

75

Views

Non-logarithmic bijective function from $\mathbb{R}^+$ into $\mathbb{R}$

Published on 09 Apr 2026 - 0:26

List Question

Restriction of function

Is there an easy way to decide the sign of $\sqrt x \ln (x + 1) - \sqrt {x + 1} \ln x$?

Mean value of a function over $R$

Calculating limit $\lim\limits_{x\to\infty}\frac{3x^2-\frac{3}{x^2+1}-4f'(x)}{f(x)}$ for an unknown function.

For a surjective function $f: A \rightarrow A$, if there exist $n$ such that $\ker f^n = \ker f^{n+1} = \dots$ Is f injective?

Meaning of infinity in $f:\mathbb R^n\rightarrow \mathbb R\cup \{\pm\infty\}$?

Is the average of a quotient ever the quotient of the averages?

$\Bbb{R}_\ell$ is Lindelöf...Why is this Map Well-defined?

Plot function y = tan(yx)

Inconsistent set theoretic notation for expressing function/sequence spaces

Function for a series of numbers like Normal/Laplace Distribution function

Range of Even Function

Concave function - proof

Topology generated by $\mathbb{R}$-valued functions of vanishing variation

Non-logarithmic bijective function from $\mathbb{R}^+$ into $\mathbb{R}$

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