List questions from problem-solving

Published on 02 Apr 2026 - 12:36

79

Views

Find $x,y$ such that $x=4y$ and $1$-$9$ occur in $x$ or $y$ exactly once.

Published on 11 Apr 2013 - 13:11

1.3k

Views

Ways to fill a $n\times n$ square with $1\times 1$ squares and $1\times 2$ rectangles

Published on 11 Apr 2013 - 20:53

453

Views

Difference between two sets of data points

Published on 12 Apr 2013 - 8:45

2.1k

Views

What branch of mathematics improves logical thinking?

Published on 24 Feb 2026 - 7:37

836

Views

Proving that $x$ is an integer, if the differences between any two of $x^{1919}$, $x^{1960}$, and $x^{2100}$ are integers

Published on 16 Apr 2013 - 22:27

45

Views

Solving for $f(n+1)$ when $f(k)$ is known for $k=0,1,...,n$

Published on 19 Apr 2013 - 2:11

342

Views

When asked to show that $X=Y$, is it reasonable to manipulate $X$ without thinking about $Y$?

Published on 19 Apr 2013 - 6:16

462

Views

Irrational equation, How to solve it?

Published on 22 Apr 2013 - 4:36

2.1k

Views

Solve the equation $x-7=28$

Published on 22 Apr 2013 - 22:19

3.1k

Views

Finding the number of ordered pairs that satisfies an equation

Published on 27 Apr 2013 - 10:57

5.2k

Views

Sum over cosines = dirac delta - how to get the coefficients?

Published on 05 Apr 2026 - 22:59

76

Views

Uniqueness of solution for boundary value problem

Published on 29 Apr 2013 - 14:19

55

Views

How to find the point in a closed geometrical figure which maximizes the "direct-line-of-sight function"

Published on 30 Apr 2013 - 19:12

823

Views

Repeating Decimals

Published on 02 May 2013 - 14:25

List Question

How to compute a product of logarithms?

Find $x,y$ such that $x=4y$ and $1$-$9$ occur in $x$ or $y$ exactly once.

Ways to fill a $n\times n$ square with $1\times 1$ squares and $1\times 2$ rectangles

Difference between two sets of data points

What branch of mathematics improves logical thinking?

Proving that $x$ is an integer, if the differences between any two of $x^{1919}$, $x^{1960}$, and $x^{2100}$ are integers

Solving for $f(n+1)$ when $f(k)$ is known for $k=0,1,...,n$

When asked to show that $X=Y$, is it reasonable to manipulate $X$ without thinking about $Y$?

Irrational equation, How to solve it?

Solve the equation $x-7=28$

Finding the number of ordered pairs that satisfies an equation

Sum over cosines = dirac delta - how to get the coefficients?

Uniqueness of solution for boundary value problem

How to find the point in a closed geometrical figure which maximizes the "direct-line-of-sight function"

Repeating Decimals

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