Question

What can be said about statement $x+y+4\sin(x)\sin(y)\ge 0$

score 71 · Answer 1 · 2026-03-16 18:57:59

71

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What can be said about statement $x+y+4\sin(x)\sin(y)\ge 0$

Published on 16 Mar 2026 - 18:57

score 114 · Answer 2 · 2026-03-25 01:15:17

114

Views

Is it a decreasing function of $x$?

Published on 25 Mar 2026 - 1:15

score 31 · Answer 3 · 2018-02-02 13:22:35

31

Views

Absolute maximum of a particular real function

Published on 02 Feb 2018 - 13:22

score 1k · Answer 4 · 2026-03-23 01:23:36

1k

Views

Proving global minima of function

Published on 23 Mar 2026 - 1:23

score 105 · Answer 5 · 2018-02-03 17:52:35

105

Views

Find the minimum value of an expression with three variables

Published on 03 Feb 2018 - 17:52

score 50 · Answer 6 · 2018-02-03 20:29:15

50

Views

Minimal sum of numbers in the uncolored squares

Published on 03 Feb 2018 - 20:29

score 161 · Answer 7 · 2026-03-24 23:46:17

161

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Maximize value of the function $A=\sqrt{|x-y|}+\sqrt{|y-z|}+\sqrt{|z-x|}$

Published on 24 Mar 2026 - 23:46

score 42 · Answer 8 · 2018-02-05 04:36:14

42

Views

Polynomial such that $f''(x) \rightarrow2$ as $x\rightarrow\infty$ given some values what is $f(1)$?

Published on 05 Feb 2018 - 4:36

score 122 · Answer 9 · 2018-02-05 12:23:00

122

Views

How to find the minimum and maximum value of value of $(\sin^{-1}(x))^4+(\cos^{-1}(x))^4$?

Published on 05 Feb 2018 - 12:23

score 88 · Answer 10 · 2018-02-05 14:51:29

88

Views

Strange Set conditions

Published on 05 Feb 2018 - 14:51

score 3.4k · Answer 11 · 2026-03-25 04:35:02

3.4k

Views

Finding the maximum value without using derivatives

Published on 25 Mar 2026 - 4:35

score 169 · Answer 12 · 2026-03-22 10:14:25

169

Views

Find the minimum value of $f(x,y,z)=\frac{x^2}{(x+y)(x+z)}+\frac{y^2}{(y+z)(y+x)}+\frac{z^2}{(z+x)(z+y)}$.

Published on 22 Mar 2026 - 10:14

score 239 · Answer 13 · 2018-02-06 00:22:05

239

Views

Find the value of $x$ that maximizes $f(x) = a^2 \operatorname{exp}\Big[\frac{x}{a^2}-\frac{x^2}{2a^2}\Big]$

Published on 06 Feb 2018 - 0:22

score 83 · Answer 14 · 2018-02-06 06:16:23

83

Views

Solution of $\tan((n+1)x/2) = (n+1)\tan(x/2)$

Published on 06 Feb 2018 - 6:16

score 2k · Answer 15 · 2026-03-25 00:25:06

2k

Views

The maximum value of the two variables function given some constraints.

Published on 25 Mar 2026 - 0:25

List Question

What can be said about statement $x+y+4\sin(x)\sin(y)\ge 0$

Is it a decreasing function of $x$?

Absolute maximum of a particular real function

Proving global minima of function

Find the minimum value of an expression with three variables

Minimal sum of numbers in the uncolored squares

Maximize value of the function $A=\sqrt{|x-y|}+\sqrt{|y-z|}+\sqrt{|z-x|}$

Polynomial such that $f''(x) \rightarrow2$ as $x\rightarrow\infty$ given some values what is $f(1)$?

How to find the minimum and maximum value of value of $(\sin^{-1}(x))^4+(\cos^{-1}(x))^4$?

Strange Set conditions

Finding the maximum value without using derivatives

Find the minimum value of $f(x,y,z)=\frac{x^2}{(x+y)(x+z)}+\frac{y^2}{(y+z)(y+x)}+\frac{z^2}{(z+x)(z+y)}$.

Find the value of $x$ that maximizes $f(x) = a^2 \operatorname{exp}\Big[\frac{x}{a^2}-\frac{x^2}{2a^2}\Big]$

Solution of $\tan((n+1)x/2) = (n+1)\tan(x/2)$

The maximum value of the two variables function given some constraints.

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