Question

Logarithm sum inequality?

score 80 · Answer 1 · 2026-04-12 16:16:59

80

Views

Logarithm sum inequality?

Published on 12 Apr 2026 - 16:16

score 311 · Answer 2 · 2026-04-16 07:40:14

311

Views

Find the smallest value of $f(x) := \left({1\over9}+{32\over \sin(x)}\right)\left({1\over32}+{9\over \cos(x)}\right)$ on the interval $(0,\pi/2)$

Published on 16 Apr 2026 - 7:40

score 1.5k · Answer 3 · 2026-04-15 07:46:32

1.5k

Views

Prove that $2018^{2019}> 2019^{2018}$ without induction, without Newton's binomial formula and without Calculus.

Published on 15 Apr 2026 - 7:46

score 252 · Answer 4 · 2026-04-14 17:20:59

252

Views

Inverse of element-wise positive matrices inequality

Published on 14 Apr 2026 - 17:20

score 818 · Answer 5 · 2026-03-24 23:41:50

818

Views

Find maximum value by using AM-GM inequality

Published on 24 Mar 2026 - 23:41

score 233 · Answer 6 · 2026-04-16 08:35:56

233

Views

Prove that $\det(A^2+B^2+A+B+I_n) \ge 0$

Published on 16 Apr 2026 - 8:35

score 142 · Answer 7 · 2026-04-14 12:46:45

142

Views

How to find the total number of pages which a book has when the clues given indicate a range?

Published on 14 Apr 2026 - 12:46

score 203 · Answer 8 · 2026-04-13 17:29:10

203

Views

Cauchy-Schwarz Master Class Exercise 1.13

Published on 13 Apr 2026 - 17:29

score 213 · Answer 9 · 2026-04-15 22:34:37

213

Views

find the maximum of the value $\left(\sum_{i=1}^{n}ia_{i}\right)\left(\sum_{i=1}^{n}\frac{a_{i}}{i}\right)^2$

Published on 15 Apr 2026 - 22:34

score 2.6k · Answer 10 · 2026-04-13 22:46:25

2.6k

Views

Matrix norm of $A-B$ and their smallest eigenvalues

Published on 13 Apr 2026 - 22:46

score 49 · Answer 11 · 2026-04-09 14:54:53

49

Views

How to show that this inequality about exponential is false?

Published on 09 Apr 2026 - 14:54

score 135 · Answer 12 · 2026-04-13 16:23:11

135

Views

How can I solve this absolute value logarithmic inequality?

Published on 13 Apr 2026 - 16:23

score 52 · Answer 13 · 2026-04-10 17:55:54

52

Views

Another proof about inequality?

Published on 10 Apr 2026 - 17:55

score 76 · Answer 14 · 2026-04-17 13:45:50

76

Views

Prove that the function ${f(x)=1+(1-x){\ln(1-\frac{1}{x})} > 1}$, ${\forall x \in \mathbb{R}}$ such that $x>1$

Published on 17 Apr 2026 - 13:45

score 77 · Answer 15 · 2026-04-13 00:40:42

77

Views

$\frac{\exp(ix)}{x}$ over half circle with hole

Published on 13 Apr 2026 - 0:40

List Question

Logarithm sum inequality?

Find the smallest value of $f(x) := \left({1\over9}+{32\over \sin(x)}\right)\left({1\over32}+{9\over \cos(x)}\right)$ on the interval $(0,\pi/2)$

Prove that $2018^{2019}> 2019^{2018}$ without induction, without Newton's binomial formula and without Calculus.

Inverse of element-wise positive matrices inequality

Find maximum value by using AM-GM inequality

Prove that $\det(A^2+B^2+A+B+I_n) \ge 0$

How to find the total number of pages which a book has when the clues given indicate a range?

Cauchy-Schwarz Master Class Exercise 1.13

find the maximum of the value $\left(\sum_{i=1}^{n}ia_{i}\right)\left(\sum_{i=1}^{n}\frac{a_{i}}{i}\right)^2$

Matrix norm of $A-B$ and their smallest eigenvalues

How to show that this inequality about exponential is false?

How can I solve this absolute value logarithmic inequality?

Another proof about inequality?

Prove that the function ${f(x)=1+(1-x){\ln(1-\frac{1}{x})} > 1}$, ${\forall x \in \mathbb{R}}$ such that $x>1$

$\frac{\exp(ix)}{x}$ over half circle with hole

Trending Questions

Popular # Hahtags

Popular Questions