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lele
  • Member for 10 years, 7 months
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I’m interested in combinatorics, probability, analysis and number theory.

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29
Bad proof that if $a + b + ab = 2020$ then $a+b=88$
17
Problem 6 - IMO 1985
15
Show that set of pre-periodic points is finite
12
Calculate the limit $\lim \limits_{n \to \infty} |\sin(\pi \sqrt{n^2+n+1})|$
9
$f:\mathbb{R}\to \mathbb{R}$ continuous and $\lim_{h \to 0^{+}} \frac{f(x+2h)-f(x+h)}{h}=0$ $\implies f=$ constant.