Question

Proof Verification: Regarding equivalent sequences and Cauchy sequences, Tao Analysis I: Exercise 5.2.1.

score 168 · Answer 1 · 2026-03-25 04:39:05

168

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Proof Verification: Regarding equivalent sequences and Cauchy sequences, Tao Analysis I: Exercise 5.2.1.

Published on 25 Mar 2026 - 4:39

score 40 · Answer 2 · 2018-04-02 11:08:52

40

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Prove that there exist always c s.t. $x(t)(y(t)+1)\leq c x(t)y(t)$ or give a counter example..

Published on 02 Apr 2018 - 11:08

score 81 · Answer 3 · 2026-03-26 12:33:33

81

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Prove the following inequality by Induction

Published on 26 Mar 2026 - 12:33

score 35 · Answer 4 · 2018-04-02 21:26:38

35

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Distances and inequalities in $\mathbb{R}$

Published on 02 Apr 2018 - 21:26

score 702 · Answer 5 · 2026-03-29 10:18:14

702

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Existence of Nth root, by Rudin soft question

Published on 29 Mar 2026 - 10:18

score 44 · Answer 6 · 2018-04-02 22:48:22

44

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Why does this inequality hold true for any norm $\|a\| \|b\| \lesssim \delta \|a \|^2 + \delta^{-1} \|b\|^2 $ for $ \forall \delta >0$.

Published on 02 Apr 2018 - 22:48

score 197 · Answer 7 · 2026-03-25 06:11:25

197

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Gaussian Elimination with Vectorial Ineqaulity

Published on 25 Mar 2026 - 6:11

score 45 · Answer 8 · 2018-04-03 02:56:52

45

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Prove $|1+t|^{-\frac{1}{2}}\le1$

Published on 03 Apr 2018 - 2:56

score 260 · Answer 9 · 2026-03-25 04:42:44

260

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Prove $\frac{a}{b}+ \frac{b}{c}+ \frac{c}{a}\geq \frac{1}{a}+ \frac{1}{b}+ \frac{1}{c}$

Published on 25 Mar 2026 - 4:42

score 253 · Answer 10 · 2026-03-23 04:24:01

253

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When $xyz=1$ why is $x+y+z\geq3$? ($x,y,z>0$)

Published on 23 Mar 2026 - 4:24

score 367 · Answer 11 · 2026-04-01 11:02:51

367

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Inequality involving cyclic sums (Muirhead? Schur? Something else?)

Published on 01 Apr 2026 - 11:02

score 112 · Answer 12 · 2018-04-03 16:17:59

112

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either inequality $\frac{2\ln(\cos{x})}{x^2}\lt \frac{x^2}{12}-1$ is hard or I need to go back to study ASAP

Published on 03 Apr 2018 - 16:17

score 122 · Answer 13 · 2026-03-27 16:53:07

122

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Partial Sum Inequality

Published on 27 Mar 2026 - 16:53

score 116 · Answer 14 · 2026-03-30 17:07:04

116

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Bound on a $\chi^2$-type quantity

Published on 30 Mar 2026 - 17:07

score 279 · Answer 15 · 2026-03-30 05:10:30

279

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Prove $\left ( a+ b \right )^{2}\left ( b+ c \right )^{2}\left ( c+ a \right )^{2}\geq 64abc$

Published on 30 Mar 2026 - 5:10

List Question

Proof Verification: Regarding equivalent sequences and Cauchy sequences, Tao Analysis I: Exercise 5.2.1.

Prove that there exist always c s.t. $x(t)(y(t)+1)\leq c x(t)y(t)$ or give a counter example..

Prove the following inequality by Induction

Distances and inequalities in $\mathbb{R}$

Existence of Nth root, by Rudin soft question

Why does this inequality hold true for any norm $\|a\| \|b\| \lesssim \delta \|a \|^2 + \delta^{-1} \|b\|^2 $ for $ \forall \delta >0$.

Gaussian Elimination with Vectorial Ineqaulity

Prove $|1+t|^{-\frac{1}{2}}\le1$

Prove $\frac{a}{b}+ \frac{b}{c}+ \frac{c}{a}\geq \frac{1}{a}+ \frac{1}{b}+ \frac{1}{c}$

When $xyz=1$ why is $x+y+z\geq3$? ($x,y,z>0$)

Inequality involving cyclic sums (Muirhead? Schur? Something else?)

either inequality $\frac{2\ln(\cos{x})}{x^2}\lt \frac{x^2}{12}-1$ is hard or I need to go back to study ASAP

Partial Sum Inequality

Bound on a $\chi^2$-type quantity

Prove $\left ( a+ b \right )^{2}\left ( b+ c \right )^{2}\left ( c+ a \right )^{2}\geq 64abc$

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