Question

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

score 72 · Answer 1 · 2026-03-25 09:17:10

72

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

Published on 25 Mar 2026 - 9:17

score 118 · Answer 2 · 2026-04-11 08:36:01

118

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Is it a decreasing function of $x$?

Published on 11 Apr 2026 - 8:36

score 34 · Answer 3 · 2026-04-13 04:55:37

34

Views

Absolute maximum of a particular real function

Published on 13 Apr 2026 - 4:55

score 1k · Answer 4 · 2026-04-10 20:33:47

1k

Views

Proving global minima of function

Published on 10 Apr 2026 - 20:33

score 109 · Answer 5 · 2026-05-10 12:32:22

109

Views

Find the minimum value of an expression with three variables

Published on 10 May 2026 - 12:32

score 53 · Answer 6 · 2026-04-12 16:23:33

53

Views

Minimal sum of numbers in the uncolored squares

Published on 12 Apr 2026 - 16:23

score 164 · Answer 7 · 2026-05-10 14:49:45

164

Views

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

Published on 10 May 2026 - 14:49

score 44 · Answer 8 · 2026-04-14 18:54:02

44

Views

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

Published on 14 Apr 2026 - 18:54

score 125 · Answer 9 · 2026-04-15 02:03:22

125

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

Published on 15 Apr 2026 - 2:03

score 93 · Answer 10 · 2026-04-10 04:53:45

93

Views

Strange Set conditions

Published on 10 Apr 2026 - 4:53

score 3.4k · Answer 11 · 2026-05-05 05:40:52

3.4k

Views

Finding the maximum value without using derivatives

Published on 05 May 2026 - 5:40

score 176 · Answer 12 · 2026-05-10 14:14:48

176

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 10 May 2026 - 14:14

score 241 · Answer 13 · 2026-04-15 13:39:28

241

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 15 Apr 2026 - 13:39

score 86 · Answer 14 · 2026-04-16 13:53:33

86

Views

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

Published on 16 Apr 2026 - 13:53

score 2k · Answer 15 · 2026-04-13 20:58:33

2k

Views

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

Published on 13 Apr 2026 - 20:58

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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