Mathematics
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richrow
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Score Newest
question
9
For $a, b, c$ with $a+b+c=0$ prove $\frac15\sum a^5=\frac13\sum a^3\cdot\frac12\sum a^2$ and $\frac17\sum a^7=\frac15\sum a^5\cdot\frac12\sum a^2$
Jan 4
answer
8
How to find this $\prod_{k=-\infty}^{+\infty}\frac{x^2+(4k+1-y)^2}{x^2+(4k+3-y)^2}$
Aug 22, 2020
question
7
Distribution of $\{n^p\alpha\}$ for irrational $\alpha$
May 23, 2020
question
7
Prime numbers which divide $n^3-3n+1$
Aug 23, 2020
question
6
Сharacteristic property of polynomials with integer coefficients
Dec 29, 2019
answer
6
Show that $(\binom{p^2}{p} -p ) $ is divisible by $p^5$, for every prime number $p, p\ge 5$
Apr 15, 2019
answer
6
Show that the elements of the sequence are divisible by $2^n$
Jul 25, 2020
answer
5
Can the number of terms of sequence $p_1$, $2p_1+1$, $2(2p_1+1)+1$, . . . be more than 3?
Oct 26, 2020
answer
5
Prove that the midpoint of $AH$ lies on the radical axis of $(REC)$ and $(QFB)$.
Jan 29, 2021
answer
5
Prove that every tournament contains at least one Hamiltonian path.
Mar 12, 2020
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13
Difference between commands `\setminus` and `\backslash`

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