Question

Function graph - meet an even number of times each horizontal line

score 34 · Answer 1 · 2026-04-15 11:41:06

34

Views

Function graph - meet an even number of times each horizontal line

Published on 15 Apr 2026 - 11:41

score 998 · Answer 2 · 2026-04-16 02:55:46

998

Views

Give an example of sets $X,Y$, subset $A,B \subseteq X$ and a function $f:X→Y$ such that $f[A \cap B ]$ $\neq$ $f[A] \cap [B]$

Published on 16 Apr 2026 - 2:55

score 61 · Answer 3 · 2026-03-27 09:13:49

61

Views

What is the domain of this composite function?

Published on 27 Mar 2026 - 9:13

score 498 · Answer 4 · 2026-04-17 02:02:09

498

Views

Is there a formal concept for "locality of a function"?

Published on 17 Apr 2026 - 2:02

score 45 · Answer 5 · 2026-04-17 22:12:13

45

Views

Are equations correct? counterexamples

Published on 17 Apr 2026 - 22:12

score 93 · Answer 6 · 2026-04-15 18:40:58

93

Views

Examples of Log-Lipschitz and nonLog-Lipschitz functions satisfying certain conditions

Published on 15 Apr 2026 - 18:40

score 69 · Answer 7 · 2026-04-16 00:03:06

69

Views

Domain of $x^{\sin x+\cos x}$

Published on 16 Apr 2026 - 0:03

score 74 · Answer 8 · 2026-04-09 11:25:26

74

Views

If $\int_{-4}^4 f(x)(\sin x +1)\, dx = 8, \; \int_{-2}^4 f(x)\, dx = 4$ where $f(x)$ is an even function, what is $\int_{-2}^0 f(x)\mathrm dx\ ?$

Published on 09 Apr 2026 - 11:25

score 57 · Answer 9 · 2026-04-17 04:48:01

57

Views

function's symmetry

Published on 17 Apr 2026 - 4:48

score 98 · Answer 10 · 2026-04-17 06:21:19

98

Views

Q: prove or disprove that $\{(x^2, x^3): x \in \mathbb{Q}\}$ is a function

Published on 17 Apr 2026 - 6:21

score 128 · Answer 11 · 2026-04-17 11:00:14

128

Views

Is there a class of real functions strictly between $C^{\infty}$ (smooth) and $C^{\omega}$ (analytic)?

Published on 17 Apr 2026 - 11:00

score 67 · Answer 12 · 2026-04-13 16:25:50

67

Views

Why Is This Function Bijective?

Published on 13 Apr 2026 - 16:25

score 58 · Answer 13 · 2026-04-11 11:59:33

58

Views

Inverse of increasing continuous function is increasing continuous when?

Published on 11 Apr 2026 - 11:59

score 2.8k · Answer 14 · 2026-04-17 04:38:22

2.8k

Views

$f(x+1/2)+f(x-1/2)= f(x)$ Then the period of $f(x)$ is?

Published on 17 Apr 2026 - 4:38

score 75 · Answer 15 · 2026-04-16 00:49:31

75

Views

What is the intuition behind a ((final - midterm)^2)/(100-midterm) grade bonus?

Published on 16 Apr 2026 - 0:49

List Question

Function graph - meet an even number of times each horizontal line

Give an example of sets $X,Y$, subset $A,B \subseteq X$ and a function $f:X→Y$ such that $f[A \cap B ]$ $\neq$ $f[A] \cap [B]$

What is the domain of this composite function?

Is there a formal concept for "locality of a function"?

Are equations correct? counterexamples

Examples of Log-Lipschitz and nonLog-Lipschitz functions satisfying certain conditions

Domain of $x^{\sin x+\cos x}$

If $\int_{-4}^4 f(x)(\sin x +1)\, dx = 8, \; \int_{-2}^4 f(x)\, dx = 4$ where $f(x)$ is an even function, what is $\int_{-2}^0 f(x)\mathrm dx\ ?$

function's symmetry

Q: prove or disprove that $\{(x^2, x^3): x \in \mathbb{Q}\}$ is a function

Is there a class of real functions strictly between $C^{\infty}$ (smooth) and $C^{\omega}$ (analytic)?

Why Is This Function Bijective?

Inverse of increasing continuous function is increasing continuous when?

$f(x+1/2)+f(x-1/2)= f(x)$ Then the period of $f(x)$ is?

What is the intuition behind a ((final - midterm)^2)/(100-midterm) grade bonus?

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