List questions from recreational-mathematics

96

Views

Let $n \geq 3$. Take an $2n \times 2n$ chessboard, and remove $2$ white pieces and $2$ black pieces, can you always cover it with dominoes?

Published on 17 Apr 2026 - 14:20

22

Views

Customer Lifespan Value calculation with few data

Published on 11 Apr 2026 - 14:19

207

Views

Is every natural number the truncation of a prime?

Published on 10 Apr 2026 - 7:57

39

Views

A question involving percents and a piecewised defined function.

Published on 13 Apr 2026 - 16:41

141

Views

Distributing n integers between k people

Published on 13 Apr 2026 - 23:54

100

Views

Prove $\sqrt{a} \cos^2(\theta) + \sqrt{b} \sin^2(\theta) < \sqrt{c}$ if $a\cos^2(\theta) + b \sin^2(\theta) < c$

Published on 18 Apr 2026 - 2:08

217

Views

What percentage of positive integers, written in base 10, are composite regardless of what base they are interpreted in?

Published on 11 Apr 2026 - 4:08

99

Views

Prime-aligned spiral

Published on 12 Apr 2026 - 2:35

174

Views

Number of convex polyhedra whose faces are regular polygons and whose largest face is an $n$-gon

Published on 14 Apr 2026 - 4:15

90

Views

Palindromic divisibility and primes

Published on 17 Apr 2026 - 7:36

105

Views

A general theory of fractional operations?

Published on 01 Apr 2026 - 15:22

104

Views

Number of bijective partial functions between two finite sets?

Published on 09 Apr 2026 - 11:42

56

Views

Polynomial and product expression of sinx for the 5th power!

Published on 13 Apr 2026 - 9:30

81

Views

One-sided implicit differentiation

Published on 13 Apr 2026 - 16:36

116

Views

How to evaluate $\sum_{n=1}^{\infty} \frac{1}{n^2+4n+1}$

Published on 10 Apr 2026 - 13:00

List Question

Let $n \geq 3$. Take an $2n \times 2n$ chessboard, and remove $2$ white pieces and $2$ black pieces, can you always cover it with dominoes?

Customer Lifespan Value calculation with few data

Is every natural number the truncation of a prime?

A question involving percents and a piecewised defined function.

Distributing n integers between k people

Prove $\sqrt{a} \cos^2(\theta) + \sqrt{b} \sin^2(\theta) < \sqrt{c}$ if $a\cos^2(\theta) + b \sin^2(\theta) < c$

What percentage of positive integers, written in base 10, are composite regardless of what base they are interpreted in?

Prime-aligned spiral

Number of convex polyhedra whose faces are regular polygons and whose largest face is an $n$-gon

Palindromic divisibility and primes

A general theory of fractional operations?

Number of bijective partial functions between two finite sets?

Polynomial and product expression of sinx for the 5th power!

One-sided implicit differentiation

How to evaluate $\sum_{n=1}^{\infty} \frac{1}{n^2+4n+1}$

Trending Questions

Popular # Hahtags

Popular Questions