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16
votes
Bisection of a a triangular area
geometry
euclidean-geometry
contest-math
triangles
area
asked Aug 21, 2019 at 20:45
math.stackexchange.com
6
votes
Showing that $1+2020^y$ ($y\in \mathbb{Z}$) is not a perfect square
elementary-number-theory
asked Mar 1, 2020 at 19:08
math.stackexchange.com
6
votes
Let $M\in \text{SO}(3,\mathbb{R})$, prove that $\det(M-I_3)=0$.
linear-algebra
matrices
orthogonal-matrices
asked Sep 18, 2021 at 16:17
math.stackexchange.com
Top Answers
No answers with score of 5 or more