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global05
  • Member for 2 years, 10 months
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6 votes
Accepted

Calculating $\phi(100)$ where $\phi$ is the totient function

4 votes
Accepted

Name of Math Symbol $"\mapsto"$ in the expression $\mathbf{x} \mapsto A \mathbf{x}$

3 votes
Accepted

Best method to find how many solutions are there to the equation $a + b + c = 21?$

2 votes
Accepted

Which Greek letter is commonly used to represent a count?

2 votes

Word Problems regarding Probability

2 votes

One person from a party is selected at random

2 votes
Accepted

Number of $3$-digit numbers with strictly increasing digits

1 vote
Accepted

Determinant Tic Tac Toe Part 2

1 vote
Accepted

Check this proof: If two columns/rows of a matrix are the same, the determinant is $0$.

1 vote
Accepted

Explain and Apply Euler's Generalisation of Fermat's Theorem

1 vote

Explain and Apply Euler's Generalisation of Fermat's Theorem

1 vote

A Smarter way to solve this system of linear equations?

1 vote

Rhombus Identification: 3 sides equal + 2 parallel sides?

0 votes

What is the probability that a fair die rolled once will land on either 4 or 5?

0 votes
Accepted

$A$ could've done a job in 6 hours longer, $B$ in 15 hours longer and $C$ in twice the time needed if they work together. How long together?

0 votes

Resources to learn the meaning of any math symbol

0 votes

Probability - dependent events.

0 votes

Coin tossing game with one yes/no question.

0 votes
Accepted

$3^{123} \mod 100$

-1 votes
Accepted

Show that if 12 integers are chosen there are always two whose sum or difference is divisible by 20.