Question

Estimate of $\frac{\cosh^2(x)}{\sinh^2(x)}-\frac{\cosh^2(y)}{\sinh^2(y)}$ depending on $x$ and $y$

score 71 · Answer 1 · 2026-04-04 19:49:20

71

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Estimate of $\frac{\cosh^2(x)}{\sinh^2(x)}-\frac{\cosh^2(y)}{\sinh^2(y)}$ depending on $x$ and $y$

Published on 04 Apr 2026 - 19:49

score 872 · Answer 2 · 2026-04-11 02:29:47

872

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Proof of Max-Min Inequality

Published on 11 Apr 2026 - 2:29

score 406 · Answer 3 · 2026-04-12 01:19:49

406

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Published on 12 Apr 2026 - 1:19

score 362 · Answer 4 · 2020-11-26 12:17:54

362

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score 61 · Answer 5 · 2026-04-10 20:51:38

61

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Published on 10 Apr 2026 - 20:51

score 39 · Answer 6 · 2020-11-26 21:05:25

39

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Published on 26 Nov 2020 - 21:05

score 86 · Answer 7 · 2026-04-07 18:29:45

86

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Published on 07 Apr 2026 - 18:29

score 140 · Answer 8 · 2020-11-30 18:43:27

140

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Find the maximum value of a function $f(x) = |x(x - 1)(x - 2)(x - 3)(x - 4)(x - 5)(x - 6)(x - 7)|$ where $3 \leq x \leq 4$

Published on 30 Nov 2020 - 18:43

score 135 · Answer 9 · 2020-11-30 19:16:36

135

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Does $f(x,y)=x^4+y^4$ have an extremum at $(0,0)$?

Published on 30 Nov 2020 - 19:16

score 137 · Answer 10 · 2026-04-10 19:55:46

137

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Proving a claim about extremas of continuous functions

Published on 10 Apr 2026 - 19:55

score 192 · Answer 11 · 2020-12-02 07:26:48

192

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Maximum and minimum values of $f(x)=\frac{\cos x- \sin x}{\cos x+\sin x}, x\geq0$

Published on 02 Dec 2020 - 7:26

score 61 · Answer 12 · 2020-12-02 22:22:52

61

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What does "$\min\limits_x - \cos x$" mean in this optimization question?

Published on 02 Dec 2020 - 22:22

score 168 · Answer 13 · 2020-12-03 21:35:43

168

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How to solve for $x$ and $y$ given these two multivariable functions?

Published on 03 Dec 2020 - 21:35

score 184 · Answer 14 · 2026-04-07 18:09:58

184

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Published on 07 Apr 2026 - 18:09

score 103 · Answer 15 · 2020-12-05 14:02:30

103

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Finding coordinates of maximum with unknown powers $f(x)=(x^m)*((1-x)^n)$ on a line segment [0;1]

Published on 05 Dec 2020 - 14:02

List Question

Estimate of $\frac{\cosh^2(x)}{\sinh^2(x)}-\frac{\cosh^2(y)}{\sinh^2(y)}$ depending on $x$ and $y$

Proof of Max-Min Inequality

Minimize a function

Determine to point of maximum and minimum of a function

Optimization equality for composition of nondecreasing functions

The exact definition of max(,)?

Finding the local minima

Find the maximum value of a function $f(x) = |x(x - 1)(x - 2)(x - 3)(x - 4)(x - 5)(x - 6)(x - 7)|$ where $3 \leq x \leq 4$

Does $f(x,y)=x^4+y^4$ have an extremum at $(0,0)$?

Proving a claim about extremas of continuous functions

Maximum and minimum values of $f(x)=\frac{\cos x- \sin x}{\cos x+\sin x}, x\geq0$

What does "$\min\limits_x - \cos x$" mean in this optimization question?

How to solve for $x$ and $y$ given these two multivariable functions?

Determine the supremum and infimum of sets

Finding coordinates of maximum with unknown powers $f(x)=(x^m)*((1-x)^n)$ on a line segment [0;1]

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