Mathematics
Tig la Pomme's user avatar
Tig la Pomme's user avatar
Tig la Pomme's user avatar
Tig la Pomme
  • Member for 6 years, 9 months
  • Last seen more than 1 year ago
  • In Uranus
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4
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About

I'm a maths teacher and amateur.

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All Questions Answers
Score Newest
answer
6
Prove that if $x$ is a set, then $x$ is not an element of itself.
Feb 26, 2017
answer
4
If $f(n)$ be the integer closest to $\sqrt{n}.$ then value of $ \sum^{2016}_{k=1}\frac{1}{f(k)}$
Feb 23, 2017
answer
4
Find elements $f,g\in\mathrm{End}(V)$ such that $f\circ g=id_V$ and $f,g\not\in \mathrm{End}(V)^{\times}$
Feb 24, 2017
answer
4
Solve $\lim_{x \rightarrow e} \frac{e-x}{\ln x -1}$ without using L'Hopital's rule
Feb 24, 2017
answer
4
Subrings of $\mathbb{R}[x,y]$ whose sum is not a subring
Feb 24, 2017
answer
3
Show that the countable union of countable sets is countable - conceptualisation help
Feb 23, 2017
answer
3
Compute $\sum \limits_{k=0}^{n}(-1)^{k}k^{m}\binom{n}{k}$ using Lagrange interpolation.
Feb 24, 2017
question
2
Determinant computation
Apr 30, 2017
question
2
Non-commutative regular monoid
Jun 27, 2017
answer
2
Does there exist a $2×2$ matrix such that $A^2 \neq 0$ but $A^3=0$?
Feb 23, 2017

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