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Second derivative Test becomes zero

score 95 · Answer 1 · 2026-03-27 21:43:03

95

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Second derivative Test becomes zero

Published on 27 Mar 2026 - 21:43

score 137 · Answer 2 · 2019-01-14 15:37:47

137

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Optimizing over an Integral

Published on 14 Jan 2019 - 15:37

score 3.7k · Answer 3 · 2026-03-26 13:01:08

3.7k

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Maximum value of function $f(x)=\frac{x^4-x^2}{x^6+2x^3-1}$ when $x >1$

Published on 26 Mar 2026 - 13:01

score 49 · Answer 4 · 2019-01-16 13:46:00

49

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How to maximize the fraction of the square of the sum of some sine and cosine functions

Published on 16 Jan 2019 - 13:46

score 148 · Answer 5 · 2026-03-26 09:51:24

148

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If $x$ and $y$ are acute, and $\sin y = 3 \cos (x+y) \sin x$⁡, then find the maximum value of $\tan y$

Published on 26 Mar 2026 - 9:51

score 73 · Answer 6 · 2026-03-26 06:18:52

73

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Max function with absolute values for arbitrary number of arguments

Published on 26 Mar 2026 - 6:18

score 469 · Answer 7 · 2026-03-25 23:42:41

469

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Find a point $X$, in the plane of regular pentagon $ABCDE$, that minimizes $\frac{XA+XB}{XC+XD+XE}$.

Published on 25 Mar 2026 - 23:42

score 117 · Answer 8 · 2026-03-25 09:29:14

117

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What is the minimum value of $f_\infty=\frac{x}{\sqrt{x-\sqrt[3]{x-\sqrt[4]{x-\cdots}}}}$?

Published on 25 Mar 2026 - 9:29

score 98 · Answer 9 · 2026-03-26 04:35:00

98

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Calculating the minimum distance to the origin from a curve defined by $\frac{x^2}{4}+y^2+\frac{z^2}{4}=1$ and $x+y+z=1$

Published on 26 Mar 2026 - 4:35

score 41 · Answer 10 · 2026-03-27 06:09:13

41

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Let $a;b;c\in R+$ such that $a+\frac{b}{16}+\frac{c}{81}\le \:3;\frac{b}{16}+\frac{c}{81}\le 2;c\le 81$. Find maxima of $A$

Published on 27 Mar 2026 - 6:09

score 30 · Answer 11 · 2026-03-26 04:34:57

30

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Extremum value of $f(x,y)=ax^2+2hxy+by^2$ subject to constraints $g(x,y)=x^2+y^2-c^2=0$.

Published on 26 Mar 2026 - 4:34

score 251 · Answer 12 · 2026-03-26 06:18:30

251

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Confusing Lagrange multipliers question

Published on 26 Mar 2026 - 6:18

score 123 · Answer 13 · 2026-03-25 17:45:25

123

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Effect of a convolution with a Bernoulli distribution on Rényi divergence

Published on 25 Mar 2026 - 17:45

score 208 · Answer 14 · 2019-01-24 18:40:51

Prove if $f : \mathbb{R} \to \mathbb{R}$ is a continuous function and $\lim_{x\to\pm\infty} f(x) = 0$, $f$ has a global maximum and minimum.

score 2.9k · Answer 15 · 2026-03-28 05:28:40

2.9k

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Maximizing $ (4a-3b)^2+(5b-4c)^2+(3c-5a)^2$, such that $a^2+b^2+c^2=1 $

Published on 28 Mar 2026 - 5:28

List Question

Second derivative Test becomes zero

Optimizing over an Integral

Maximum value of function $f(x)=\frac{x^4-x^2}{x^6+2x^3-1}$ when $x >1$

How to maximize the fraction of the square of the sum of some sine and cosine functions

If $x$ and $y$ are acute, and $\sin y = 3 \cos (x+y) \sin x$⁡, then find the maximum value of $\tan y$

Max function with absolute values for arbitrary number of arguments

Find a point $X$, in the plane of regular pentagon $ABCDE$, that minimizes $\frac{XA+XB}{XC+XD+XE}$.

What is the minimum value of $f_\infty=\frac{x}{\sqrt{x-\sqrt[3]{x-\sqrt[4]{x-\cdots}}}}$?

Calculating the minimum distance to the origin from a curve defined by $\frac{x^2}{4}+y^2+\frac{z^2}{4}=1$ and $x+y+z=1$

Let $a;b;c\in R+$ such that $a+\frac{b}{16}+\frac{c}{81}\le \:3;\frac{b}{16}+\frac{c}{81}\le 2;c\le 81$. Find maxima of $A$

Extremum value of $f(x,y)=ax^2+2hxy+by^2$ subject to constraints $g(x,y)=x^2+y^2-c^2=0$.

Confusing Lagrange multipliers question

Effect of a convolution with a Bernoulli distribution on Rényi divergence

Prove if $f : \mathbb{R} \to \mathbb{R}$ is a continuous function and $\lim_{x\to\pm\infty} f(x) = 0$, $f$ has a global maximum and minimum.

Maximizing $ (4a-3b)^2+(5b-4c)^2+(3c-5a)^2$, such that $a^2+b^2+c^2=1 $

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