Question

How to do the change of variables in this integral

score 62 · Answer 1 · 2017-05-23 08:25:05

62

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How to do the change of variables in this integral

Published on 23 May 2017 - 8:25

score 101 · Answer 2 · 2017-05-26 07:51:13

101

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Simplifying logarithmic equations

Published on 26 May 2017 - 7:51

score 132 · Answer 3 · 2017-05-31 16:41:36

132

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Equality for the Hill Estimator

Published on 31 May 2017 - 16:41

score 1.8k · Answer 4 · 2017-06-01 16:26:59

1.8k

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Find the value of $x+y$ knowing that $x^3+y^3=9xy-27$

Published on 01 Jun 2017 - 16:26

score 55 · Answer 5 · 2017-06-02 22:05:56

55

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What is my error in this seemingly simple integration? $ \int \frac {-x}{x+1} dx $

Published on 02 Jun 2017 - 22:05

score 161 · Answer 6 · 2026-03-30 13:41:27

161

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How prove this inequality with $\sqrt{\sum_{cyc}\frac{a^2}{b^2}}+\sqrt{3}\ge\sqrt{\sum\frac{a}{b}}+\sqrt{\sum\frac{b}{a}}$

Published on 30 Mar 2026 - 13:41

score 95 · Answer 7 · 2026-03-26 17:52:37

95

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Integrating an expression by parts and by substitution giving two different solutions?

Published on 26 Mar 2026 - 17:52

score 321 · Answer 8 · 2026-03-26 11:00:53

321

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Prove that $\sum_{cyc}\sqrt{a^2+\frac{1}{\left(b+1\right)^2}}\ge \frac{\sqrt{181}}{5}$

Published on 26 Mar 2026 - 11:00

score 82 · Answer 9 · 2017-06-07 02:32:36

82

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Prove that if a formula has property , then the formula (∃ ) also has property .

Published on 07 Jun 2017 - 2:32

score 52 · Answer 10 · 2017-06-07 21:03:58

52

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Problems with a non-linear recursion

Published on 07 Jun 2017 - 21:03

score 2.3k · Answer 11 · 2017-06-08 13:01:15

2.3k

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Explanation of Solution: substitution predicate logic

Published on 08 Jun 2017 - 13:01

score 205 · Answer 12 · 2026-03-26 08:23:02

205

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Maximization of multivariable function $ M = \frac{a+1}{a^{2}+ 2a+2} + \frac{b+1}{b^{2}+ 2b+2} + \frac{c+1}{c^{2}+ 2c+2}$ subject to constraint

Published on 26 Mar 2026 - 8:23

score 32 · Answer 13 · 2017-06-11 09:43:45

32

Views

when computing integrals are all u-substitutions permitted or is there some conditions that need to be satisfied?

Published on 11 Jun 2017 - 9:43

score 440 · Answer 14 · 2026-03-26 12:53:27

440

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For $a,b,c>0$ . Prove $ (a+b+c)(\frac{1}{a}+\frac{1}{b}+\frac{1}{c})\geq 9+8\frac{(a-b)^{2}+(b-c)^{2}+(c-a)^{2}}{(a+b+c)^{2}}$

Published on 26 Mar 2026 - 12:53

score 108 · Answer 15 · 2017-06-12 16:55:07

108

Views

When can we use substitutions and why is this the case?

Published on 12 Jun 2017 - 16:55

List Question

How to do the change of variables in this integral

Simplifying logarithmic equations

Equality for the Hill Estimator

Find the value of $x+y$ knowing that $x^3+y^3=9xy-27$

What is my error in this seemingly simple integration? $ \int \frac {-x}{x+1} dx $

How prove this inequality with $\sqrt{\sum_{cyc}\frac{a^2}{b^2}}+\sqrt{3}\ge\sqrt{\sum\frac{a}{b}}+\sqrt{\sum\frac{b}{a}}$

Integrating an expression by parts and by substitution giving two different solutions?

Prove that $\sum_{cyc}\sqrt{a^2+\frac{1}{\left(b+1\right)^2}}\ge \frac{\sqrt{181}}{5}$

Prove that if a formula has property , then the formula (∃ ) also has property .

Problems with a non-linear recursion

Explanation of Solution: substitution predicate logic

Maximization of multivariable function $ M = \frac{a+1}{a^{2}+ 2a+2} + \frac{b+1}{b^{2}+ 2b+2} + \frac{c+1}{c^{2}+ 2c+2}$ subject to constraint

when computing integrals are all u-substitutions permitted or is there some conditions that need to be satisfied?

For $a,b,c>0$ . Prove $ (a+b+c)(\frac{1}{a}+\frac{1}{b}+\frac{1}{c})\geq 9+8\frac{(a-b)^{2}+(b-c)^{2}+(c-a)^{2}}{(a+b+c)^{2}}$

When can we use substitutions and why is this the case?

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