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Mathematics
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user5210
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5
Finding the total number of objects(stones).
Feb 1, 2023
4
Generating function and finite difference.
Apr 21, 2023
3
$a \le b \le c$ and $\gcd(a,b,c) = 1$ such that they are side lengths of a triangle one of whose angle is $60^\circ$. [duplicate]
Feb 3, 2023
2
Finding the total number of objects(stones).
Feb 1, 2023
2
Generalization of triangulation of an $n$-gon to $4$-sided regions.
Feb 20, 2023
2
Number of ways to complete a partial Young tableau
Apr 28, 2023
1
Find a permutation $(a_1,...,a_{10})$ of $(1,2,...,10)$ such that $ia_i \not\equiv ja_j \bmod 11$ for $2 \le i < j \le 10$.
Feb 8, 2023
1
Find all ordered triples of non-negative integers $(a,b,c)$ such that $2^a + 2^b = c!$. [duplicate]
Feb 25, 2023
1
$g = -e^{-f(x,y)}$ is concave if we know that $f(x,y) = 2x+y-x^2$ is concave.
Mar 24, 2023
1
To verify if the function is quasi-convex/quasi-concave.
Mar 24, 2023