Question

How to think about this type of game problem?

score 161 · Answer 1 · 2019-03-30 07:06:55

161

Views

How to think about this type of game problem?

Published on 30 Mar 2019 - 7:06

score 315 · Answer 2 · 2019-03-30 17:33:41

315

Views

Please help with Olympiad geometry question

Published on 30 Mar 2019 - 17:33

score 365 · Answer 3 · 2026-03-25 06:30:21

365

Views

show this inequality to $\sum_{cyc} \frac {a^3b}{(3a+2b)^3} \ge \sum_{cyc} \frac {a^2bc}{(2a+2b+c)^3} $

Published on 25 Mar 2026 - 6:30

score 1.6k · Answer 4 · 2026-03-25 17:38:38

1.6k

Views

Tiling a square with rectangles whose sides are powers of two

Published on 25 Mar 2026 - 17:38

score 113 · Answer 5 · 2019-04-05 12:17:41

113

Views

For positive $a$, $b$, $c$ with $abc=1$, show $\sum_{cyc} \left(\frac{a}{a^7+1}\right)^7\leq \sum_{cyc}\left(\frac{a}{a^{11}+1}\right)^7$

Published on 05 Apr 2019 - 12:17

score 535 · Answer 6 · 2019-04-07 19:16:40

535

Views

Proving surjectivity of some map from a power set to a subset of integers.

Published on 07 Apr 2019 - 19:16

score 115 · Answer 7 · 2019-04-08 05:04:57

115

Views

Help in solving the geometry question

Published on 08 Apr 2019 - 5:04

score 201 · Answer 8 · 2019-04-08 15:18:36

201

Views

Find the minimum of $(1+a^2)(1+b^2)(1+c^2)$ where $a,b,c\geq 0$

Published on 08 Apr 2019 - 15:18

score 127 · Answer 9 · 2026-03-26 23:11:48

127

Views

prove this inequality with $x^3+y^3+z^3$

Published on 26 Mar 2026 - 23:11

score 222 · Answer 10 · 2026-03-29 11:07:00

222

Views

Find the positive root of $100^{2}=x^{2}+ \left( \frac{100x}{100+x} \right)^{2}$

Published on 29 Mar 2026 - 11:07

score 383 · Answer 11 · 2019-04-09 15:31:19

383

Views

Number of equal triangles in a chessboard

Published on 09 Apr 2019 - 15:31

score 105 · Answer 12 · 2026-03-27 05:38:59

105

Views

Find all real functions such that $(x + 1)f(xf(y)) = xf(y(x + 1))$

Published on 27 Mar 2026 - 5:38

score 102 · Answer 13 · 2019-04-09 20:38:04

102

Views

For positive $a$, $b$, $c$, $d$ with $a+b+c+d=4$, show that $\sum_{cyc} \left(\frac{1}{a^2}-a^2\right)\ge0$

Published on 09 Apr 2019 - 20:38

score 201 · Answer 14 · 2019-04-10 20:12:27

201

Views

Finding the maximum relative misalignment of numbered rings on a combination lock?

Published on 10 Apr 2019 - 20:12

score 164 · Answer 15 · 2026-03-25 11:16:18

164

Views

Minimal number of questions to identify a subset

Published on 25 Mar 2026 - 11:16

List Question

How to think about this type of game problem?

Please help with Olympiad geometry question

show this inequality to $\sum_{cyc} \frac {a^3b}{(3a+2b)^3} \ge \sum_{cyc} \frac {a^2bc}{(2a+2b+c)^3} $

Tiling a square with rectangles whose sides are powers of two

For positive $a$, $b$, $c$ with $abc=1$, show $\sum_{cyc} \left(\frac{a}{a^7+1}\right)^7\leq \sum_{cyc}\left(\frac{a}{a^{11}+1}\right)^7$

Proving surjectivity of some map from a power set to a subset of integers.

Help in solving the geometry question

Find the minimum of $(1+a^2)(1+b^2)(1+c^2)$ where $a,b,c\geq 0$

prove this inequality with $x^3+y^3+z^3$

Find the positive root of $100^{2}=x^{2}+ \left( \frac{100x}{100+x} \right)^{2}$

Number of equal triangles in a chessboard

Find all real functions such that $(x + 1)f(xf(y)) = xf(y(x + 1))$

For positive $a$, $b$, $c$, $d$ with $a+b+c+d=4$, show that $\sum_{cyc} \left(\frac{1}{a^2}-a^2\right)\ge0$

Finding the maximum relative misalignment of numbered rings on a combination lock?

Minimal number of questions to identify a subset

Trending Questions

Popular # Hahtags

Popular Questions