Question

Could I obtain some information about the "secret"?

score 80 · Answer 1 · 2026-04-13 15:24:05

80

Views

Could I obtain some information about the "secret"?

Published on 13 Apr 2026 - 15:24

score 226 · Answer 2 · 2026-04-14 22:06:17

226

Views

Let $p(x)$ be a polynomial with integer coefficients. Show that if $p(2)=3$ and $p(3)=5$ then $p(n)\ne0$ for all integers $n$.

Published on 14 Apr 2026 - 22:06

score 411 · Answer 3 · 2026-04-13 02:02:15

411

Views

Examining cycles in a sequence

Published on 13 Apr 2026 - 2:02

score 257 · Answer 4 · 2026-03-25 15:47:10

257

Views

Proving $(1+a^2)(1+b^2)(1+c^2)\geq8 $

Published on 25 Mar 2026 - 15:47

score 77 · Answer 5 · 2026-03-27 07:15:04

77

Views

Number of binomial coefficients among $\binom{n}{k}\;(0\leq k\leq n)$ which are divisible by $p$, where $n = (n_mn_{m - 1}...n_0)_p$ in base $p$

Published on 27 Mar 2026 - 7:15

score 146 · Answer 6 · 2026-04-11 10:01:06

146

Views

how to arrange mn people for a photograph

Published on 11 Apr 2026 - 10:01

score 95 · Answer 7 · 2026-04-15 02:38:32

95

Views

Suppose that $f$ is surjective and relation preserving. Then $\mathcal{R}$ is reflexive iff $\mathcal{S}$ is reflexive.

Published on 15 Apr 2026 - 2:38

score 401 · Answer 8 · 2026-04-13 00:22:09

401

Views

Basic central limit theorem question

Published on 13 Apr 2026 - 0:22

score 56 · Answer 9 · 2026-04-12 13:43:38

56

Views

Solve network issue LP-problem

Published on 12 Apr 2026 - 13:43

score 106 · Answer 10 · 2026-04-14 21:35:34

106

Views

If $x+\frac{1}{y+\frac{1}{z+\frac13}}=\frac{118}{51}$ find $xyz$.

Published on 14 Apr 2026 - 21:35

score 103 · Answer 11 · 2026-04-14 22:00:26

103

Views

Proving a positive function doesn't exist with the condition $f(x+y)\geq yg(f(x)) \ \ , \ \ x>0 \ \ , \ \ y>0$

Published on 14 Apr 2026 - 22:00

score 65 · Answer 12 · 2026-04-15 05:28:56

65

Views

The coefficient of $x^{n}$ in the expansion of $(2-3 x) /(1-3 x+$ $\left.2 x^{2}\right)$ is

Published on 15 Apr 2026 - 5:28

score 533 · Answer 13 · 2020-08-08 07:39:39

533

Views

Evaluate :- $\frac{(2020^2 - 20100)(20100^2 - 100^2)(2000^2 + 20100)}{10(2010^6 - 10^6)}$

Published on 08 Aug 2020 - 7:39

score 86 · Answer 14 · 2026-04-15 07:23:57

86

Views

$|f''(x)|\leq M$ implies $|f(c)-f(a)-(c-a)\frac{f(b)-f(a)}{b-a}|\leq \frac{1}{8} M(b-a)^2$

Published on 15 Apr 2026 - 7:23

score 592 · Answer 15 · 2026-04-15 05:46:16

592

Views

We have $a,b,c$ and $d$ are real numbers such that $\frac{b + c + d}{a} = \frac{a + c + d}{b} = \frac{a + b + d}{c} = \frac{a + b + c}{d} = r$.

Published on 15 Apr 2026 - 5:46

List Question

Could I obtain some information about the "secret"?

Let $p(x)$ be a polynomial with integer coefficients. Show that if $p(2)=3$ and $p(3)=5$ then $p(n)\ne0$ for all integers $n$.

Examining cycles in a sequence

Proving $(1+a^2)(1+b^2)(1+c^2)\geq8 $

Number of binomial coefficients among $\binom{n}{k}\;(0\leq k\leq n)$ which are divisible by $p$, where $n = (n_mn_{m - 1}...n_0)_p$ in base $p$

how to arrange mn people for a photograph

Suppose that $f$ is surjective and relation preserving. Then $\mathcal{R}$ is reflexive iff $\mathcal{S}$ is reflexive.

Basic central limit theorem question

Solve network issue LP-problem

If $x+\frac{1}{y+\frac{1}{z+\frac13}}=\frac{118}{51}$ find $xyz$.

Proving a positive function doesn't exist with the condition $f(x+y)\geq yg(f(x)) \ \ , \ \ x>0 \ \ , \ \ y>0$

The coefficient of $x^{n}$ in the expansion of $(2-3 x) /(1-3 x+$ $\left.2 x^{2}\right)$ is

Evaluate :- $\frac{(2020^2 - 20100)(20100^2 - 100^2)(2000^2 + 20100)}{10(2010^6 - 10^6)}$

$|f''(x)|\leq M$ implies $|f(c)-f(a)-(c-a)\frac{f(b)-f(a)}{b-a}|\leq \frac{1}{8} M(b-a)^2$

We have $a,b,c$ and $d$ are real numbers such that $\frac{b + c + d}{a} = \frac{a + c + d}{b} = \frac{a + b + d}{c} = \frac{a + b + c}{d} = r$.

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