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Mathematics
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alans
  • Member for 11 years, 1 month
  • Last seen this week
  • Serbia, Belgrade
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Нельзя быть математиком, не будучи в то же время поэтом в душе.

It is impossible to be a mathematician without being a poet in soul.

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34
Finding the roots $x^4-4x^3-x^2-8x+4=0$ (contest math)
Jul 9, 2016
15
Product of manifolds & orientability
Nov 3, 2013
15
How to prove a function is always continuous?
Aug 4, 2016
13
How to find a minimal polynomial (field theory)
Jun 16, 2013
13
Integral $\int \sqrt{1+x^2}dx$
Feb 21, 2018
13
Prove that there exists $c\in\mathbb{R}$ such that $f'(c)=f(c)$
Jul 13, 2016
12
Linear independence of functions: $x_1(t) = 3$, $x_2(t)=3\sin^2t$, $x_3(t)=4\cos^2t$
Jun 26, 2013
11
How can I evaluate $\lim_{x \rightarrow 0} \frac{\left(\sqrt{2+x}-\sqrt{2} \right)}{ x}$?
Aug 13, 2013
11
(Tournament of towns 1994) Prove the inequality
Jul 9, 2016
9
If $(w + 1)(w - 1) = w$, find $ { w }^{ 10 }+\frac { 1 }{ { w }^{ 10 } } $.
Jul 30, 2016