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RiaD's user avatar
RiaD's user avatar
RiaD
  • Member for 12 years, 10 months
  • Last seen this week
  • Russia
7 votes

A sequence in $\mathbb{R}$ that has no Cauchy subsequence

6 votes

Group Theory: group under the composition multiplication modulo $p$

5 votes

Can every indefinite integral of a discontinuous function be written in a way that "proves" something false?

4 votes

Proving $\sum_{k=0}^n\binom{2n}{2k} = 2^{2n-1}$

3 votes
Accepted

number of different addends which sums to 41

3 votes

What is remainder when $5^6 - 3^6$ is divided by $2^3$ (method)

3 votes

Finding number of diagonals of polygon knowing number of points of intersection

2 votes

Solving a differential equation with three variables

1 vote

How to use induction to prove this argument?

1 vote

How to calculate the side of a right triangle from the coordinates of points and the length of one side?

1 vote

prove that the product of three numbers is the greatest if the numbers are equal

1 vote
Accepted

Intermediate value theorem confusion for decreasing function?

1 vote
Accepted

Optimal Betting Strategy question

1 vote

Optimal Betting Strategy question

0 votes

How do I show that a statement is true (Discrete Math)

0 votes

Coefficients of even powers

0 votes
Accepted

Prove $n\in \mathbb{N}^+,\sum_{k = 0}^n C(n, k) = 2^n$, using $\dots$