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Nikola Tolzsek's user avatar
Nikola Tolzsek's user avatar
Nikola Tolzsek's user avatar
Nikola Tolzsek
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I am Trung Dang, I am currently enrolling in Math class of 2022, Hanoi-Amsterdam High school for the Gifted. I like maths, and it is my major, I am especially into combinatorics and number-theory. My level is rather elementary, so I can solve questions that do not demand higher-level theories.

I hope I can share this with anyone who visit my profile.

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5
Suppose an integer x is a square modulo every prime, show that x is a square integer
Apr 20, 2022
5
For how many integers $n$ is $n^6+n^4+1$ a perfect square?
Mar 12, 2020
4
Proving 4 points on a circle.
Mar 24, 2020
4
Calculate the ratio based on the lengths of edges of triangle
Dec 14, 2021
4
Intriguing moves with the $3\times3\times3$ Rubiks cube
Nov 23, 2021
3
Using the pigeonhole principle to show that there are sequences with the same sum
Dec 31, 2020
3
How to use mathematical method to solve this problem of tree planting
Mar 14, 2020
3
Find all the values of a so that $3^{ \lfloor \frac{n-1}{2} \rfloor }\mid P_n{(a^3)}$ given the definition of $P_n$
Aug 14, 2020
3
A Polynomial-Inequality problem from Vietnam National Olympiad 2021
Dec 26, 2020
3
Number of ways to mark the edges of a net of regular tetrahedra
Feb 3, 2021