List questions from functions

Published on 09 Apr 2026 - 5:50

113

Views

Solution of $f(ax+b)=kf(x)$ with $k,a,b$ are real numbers

Published on 09 Apr 2026 - 7:32

102

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Is $a^2 = b^2$ equivalent to $a=b$?

Published on 09 Apr 2026 - 16:54

413

Views

Function counter-image...

Published on 31 Mar 2026 - 17:44

72

Views

Rank of group of continuous functions on a metric space

Published on 29 Mar 2026 - 6:33

1.2k

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A question about real-analytic functions vanishing on an open set

Published on 09 Apr 2026 - 0:05

50

Views

Finding $f$ from $f'$

Published on 10 Apr 2026 - 12:10

70

Views

Double information in definition of function

Published on 10 Apr 2026 - 20:11

103

Views

Are given functions regulated?

Published on 11 Apr 2026 - 0:35

506

Views

A recursive divisor function

Published on 08 Apr 2026 - 20:49

102

Views

Show that $\tan^{-1}(\cos(x)) > \frac{\pi}{4} \cos(x)$ for every $x \in (0,\pi/2)$

Published on 25 Mar 2026 - 1:28

180

Views

Prove that $B\not\subset f(f^{-1}(B))$

Published on 10 Apr 2026 - 8:25

194

Views

Faster way of determining the coefficient of a polynomial function?

Published on 11 Apr 2026 - 1:23

85

Views

Given $f$ is one to one, prove $f(A \backslash B)=f(A)\backslash f(B)$

Published on 10 Apr 2026 - 8:25

119

Views

Why is "greater than" not a total function?

Published on 07 Apr 2026 - 5:14

List Question

Probability of rolling ≥ $x$ with $k$ out of $m$ $n$-sided dice

Solution of $f(ax+b)=kf(x)$ with $k,a,b$ are real numbers

Is $a^2 = b^2$ equivalent to $a=b$?

Function counter-image...

Rank of group of continuous functions on a metric space

A question about real-analytic functions vanishing on an open set

Finding $f$ from $f'$

Double information in definition of function

Are given functions regulated?

A recursive divisor function

Show that $\tan^{-1}(\cos(x)) > \frac{\pi}{4} \cos(x)$ for every $x \in (0,\pi/2)$

Prove that $B\not\subset f(f^{-1}(B))$

Faster way of determining the coefficient of a polynomial function?

Given $f$ is one to one, prove $f(A \backslash B)=f(A)\backslash f(B)$

Why is "greater than" not a total function?

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