problem-set
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Determine all solutions in non-zero integers $a$ and $b$ of the equation $$(a^2+b)(a+b^2) = (a-b)^3.$$ Suppose that the set $\{1,2,\cdots, 1998\}$ has been ...
admin
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Orders Given a prime $p$, the order of an integer $a$ modulo $p$, $p\nmid a$, is the smallest positive integer $d$, such that $a^d \equiv 1 \pmod p$. This ...
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Hello there! It has been a long time since I uploaded a post here. I recently took a class at the European Girls' Mathematical Olympiad Training Camp 2024, ...
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Since INMO is coming up, it would be nice to write a post about it! A lot of people have been asking me for tips.To people who are visiting this site for ...