Question

How to maximize area bounded by thread and a fixed line?

score 53 · Answer 1 · 2026-04-09 01:37:27

53

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How to maximize area bounded by thread and a fixed line?

Published on 09 Apr 2026 - 1:37

score 183 · Answer 2 · 2026-04-09 20:11:27

183

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Self-student variational calculus - the maxima and minima simplest problem

Published on 09 Apr 2026 - 20:11

score 55 · Answer 3 · 2026-04-16 17:03:41

55

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Minimizer of $g(\mathbf{x}) = \frac12 \mathbf{x}^T A\mathbf{x}-\mathbf{b}^T\mathbf{x} + c$

Published on 16 Apr 2026 - 17:03

score 243 · Answer 4 · 2026-04-14 05:43:55

243

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Second Derivative Test for Multivariable Calculus Example

Published on 14 Apr 2026 - 5:43

score 116 · Answer 5 · 2026-04-15 09:52:55

116

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Maximum value of $ (1- \tan A)(1- \tan B)(1- \tan C)$

Published on 15 Apr 2026 - 9:52

score 60 · Answer 6 · 2026-04-17 07:31:15

60

Views

Local minima of $f(x) = \begin{cases} 5 x^2 (2 - \sin \tfrac{1}{x}) & \text{ if } x \neq 0 \\ 0 & \text{ if } x = 0 \end{cases}$ dense near $0$

Published on 17 Apr 2026 - 7:31

score 179 · Answer 7 · 2026-04-08 23:53:05

179

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Proving a function has a local minimum

Published on 08 Apr 2026 - 23:53

score 33 · Answer 8 · 2026-04-11 21:28:45

33

Views

Income and expenditure problem

Published on 11 Apr 2026 - 21:28

score 92 · Answer 9 · 2026-04-12 10:45:23

92

Views

Why does the triangle inequality not work here?

Published on 12 Apr 2026 - 10:45

score 125 · Answer 10 · 2026-04-09 21:19:40

125

Views

Finding extreme values of $ f :\mathbb R^2\rightarrow \mathbb R$, when the determinant $\Delta = AC - B^2 = 0$.

Published on 09 Apr 2026 - 21:19

score 259 · Answer 11 · 2026-04-18 05:37:03

259

Views

Find extrema of $y=?(x)-x$ with the Minkowski Question Mark function

Published on 18 Apr 2026 - 5:37

score 78 · Answer 12 · 2026-04-15 10:51:58

78

Views

Show that $f(1)$ is the maximum value of $f(x)=\frac{x^2+x}{1+x^2}$ where $x \in [-1, 1]$ without derivatives

Published on 15 Apr 2026 - 10:51

score 99 · Answer 13 · 2026-04-16 13:44:38

99

Views

Minimizing the number of characters required to write a set of numbers

Published on 16 Apr 2026 - 13:44

score 179 · Answer 14 · 2026-04-15 17:20:14

179

Views

Is there an elegant method to find the minimum value of $\frac{\sqrt{x^{4}+x^{2}+2 x+1}+\sqrt{x^{4}-2 x^{3}+5 x^{2}-4 x+1}}{x}$ for positive $x$?

Published on 15 Apr 2026 - 17:20

score 45 · Answer 15 · 2026-04-17 10:25:22

45

Views

Extreme point of $g(x_1,x_2,x_3)=x_1^2+x_2^2+x_3^2-10x_1x_2x_3$.

Published on 17 Apr 2026 - 10:25

List Question

How to maximize area bounded by thread and a fixed line?

Self-student variational calculus - the maxima and minima simplest problem

Minimizer of $g(\mathbf{x}) = \frac12 \mathbf{x}^T A\mathbf{x}-\mathbf{b}^T\mathbf{x} + c$

Second Derivative Test for Multivariable Calculus Example

Maximum value of $ (1- \tan A)(1- \tan B)(1- \tan C)$

Local minima of $f(x) = \begin{cases} 5 x^2 (2 - \sin \tfrac{1}{x}) & \text{ if } x \neq 0 \\ 0 & \text{ if } x = 0 \end{cases}$ dense near $0$

Proving a function has a local minimum

Income and expenditure problem

Why does the triangle inequality not work here?

Finding extreme values of $ f :\mathbb R^2\rightarrow \mathbb R$, when the determinant $\Delta = AC - B^2 = 0$.

Find extrema of $y=?(x)-x$ with the Minkowski Question Mark function

Show that $f(1)$ is the maximum value of $f(x)=\frac{x^2+x}{1+x^2}$ where $x \in [-1, 1]$ without derivatives

Minimizing the number of characters required to write a set of numbers

Is there an elegant method to find the minimum value of $\frac{\sqrt{x^{4}+x^{2}+2 x+1}+\sqrt{x^{4}-2 x^{3}+5 x^{2}-4 x+1}}{x}$ for positive $x$?

Extreme point of $g(x_1,x_2,x_3)=x_1^2+x_2^2+x_3^2-10x_1x_2x_3$.

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