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Mathematics
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Leo163's user avatar
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Leo163
  • Member for 9 years, 9 months
  • Last seen more than a month ago
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13
Proving the area is irrational for triangle with integer vertices
Dec 19, 2017
9
Squares in $\mathbb{Z}_p$ that are not squares in $\mathbb{Z}$
Nov 7, 2017
7
Proof of an interesting inequality
Mar 19, 2019
7
$f:\mathbb{R}\rightarrow\mathbb{R}$ is not one-to-one if $[f(x)]^2-4\cdot f(x^5)+3=0,\forall x\in\mathbb{R}$?
Oct 15, 2017
6
Parity of sum of powers of odd numbers
Oct 9, 2018
6
Boundary of the intersection of two open sets in $\mathbb{R}^n$
Nov 26, 2016
5
Find the number of ordered pairs of positive integers (x,y) that satisfy $x^{2} - xy + y^{2} = 49$
Jun 19, 2019
4
Solution verification: Picking stones consecutively puzzle
Jul 15, 2020
4
Condition on sides of triangle to proof it is isoceles
May 13, 2018
4
Degree of the eighth vertex given the other degrees
Apr 30, 2018