Mathematics
Martín Vacas Vignolo's user avatar
Martín Vacas Vignolo's user avatar
Martín Vacas Vignolo's user avatar
Martín Vacas Vignolo
  • Member for 8 years
  • Last seen this week
  • Buenos Aires, Argentina
Profile Activity
Stats
4,700
reputation
145k
reached
246
answers
22
questions
Communities
About

Mathematics student at UBA. Teacher.

Badges
View all badges
This user doesn’t have any gold badges yet.
12
silver badges
25
bronze badges
Top tags
View all tags
37
Score
26
Posts
10
Posts %
34
Score
30
Posts
11
Posts %
34
Score
27
Posts
10
Posts %
32
Score
25
Posts
9
Posts %
16
Score
14
Posts
5
Posts %
14
Score
22
Posts
8
Posts %
Top posts
View all questions and answers
All Questions Answers
Score Newest
answer
20
Roll two dice. What is the probability that one die shows exactly two more than the other die?
Mar 28, 2016
answer
18
Are all functions that have a primitive differentiable?
Dec 29, 2018
question
14
Prove that $\vert E \vert=0$ if $\frac{x+y}{2}\notin E$ for $x,y \in E$
Mar 18, 2016
answer
8
Is it impossible to construct an equilateral triangle inside a semicircle?
Dec 31, 2015
answer
7
Is $\gcd(a,b) = \gcd(2a,b)$?
Jul 26, 2016
answer
7
True or False: If $A + A^2$ is invertible, then $A$ is also invertible
Dec 13, 2015
answer
6
Show that this matrix is singular
Jan 2, 2018
question
6
Converse for Fubini-Tonelli's theorem
May 6, 2016
answer
5
How to get the combinatory of the numbers?
May 2, 2018
answer
5
Determinate all the positive integers $x$ such that $x^4+6x^3+11x^2+3x+11$ is a perfect square.
Feb 14, 2018

Your privacy

By clicking “Accept all cookies”, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy.