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Mathematics
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VTand
  • Member for 5 years
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  • Singapore
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Graduated as a Bachelor of Science with Major in Applied Mathematics from National University of Singapore.

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20
Can $7^n+1$ be a perfect cube when $n\geq2$?
Jan 27, 2023
answer
18
Why do we even have $\subseteq$?
Nov 26, 2021
answer
11
Maximum number of negative coefficients $p(x)^2$ can have
Dec 4, 2022
answer
10
Is it possible to paint a $19\times19$ board so that every $10\times10$ square has a different number of colored squares?
Nov 6, 2021
answer
9
How many planar graphs of vertex degrees all $\ge4$ are there?
Jul 30, 2022
answer
7
Number of ways to parenthesize Matrix Multiplication: Why isn't it $(n-1)!$
Dec 11, 2022
answer
7
Placing numbers $1,2,...,7$ on an infinite square grid with constraint on each $3 \times 3$ block
Nov 25, 2021
answer
5
Product of practical number times one of its divisor, is a practical number
Aug 16, 2023
answer
5
How to calculate odds in finance
Nov 27, 2021
answer
5
Combinatorics with 8 boxes
Nov 21, 2021