Mathematics
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Jeroen's user avatar
Jeroen
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Score Newest
question
48
Prove that the function$\ f(x)=\sin(x^2)$ is not uniformly continuous on the domain $\mathbb{R}$.
Oct 22, 2012
question
12
Let $G$ be a finite group with $|G|>2$. Prove that ${\rm Aut}(G)$ contains at least two elements.
May 18, 2013
question
10
Show that $h \equiv 1 \pmod p$, where $h$ is the number of subgroups of order $p$ and $p$ divides the group order. [duplicate]
May 9, 2013
question
7
Let $G$ be a group of order $pq$, with $p$ and $q$ prime. Prove that the order of the center of $G$ is 1 or $pq$.
May 12, 2013
question
6
For which values of $\alpha \in \mathbb R$ is the following system of linear equations solvable?
Nov 4, 2012
question
6
In how many ways can the alphabet be ordered such that no four or five vowels are next to each other?
Nov 6, 2012
question
6
Calculate $\int_{0}^{2\pi} \frac{\cos((2n+1)t)}{\cos(t)}dt$
May 2, 2014
question
5
Prove that $f$, such that $\forall\delta\gt0$ $|f(y)-f(x)|\lt\delta^2$ $\forall x,y\in\mathbb{R}$ and $|y-x|\lt\delta$, is a constant function.
Oct 24, 2012
question
5
Chain rule proof
May 18, 2013
question
4
How come $\frac{n!}{n_1!\cdot n_2!\cdot...\cdot n_k!}$ is always an integer? [duplicate]
Jan 2, 2013
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11
Easier program for period of Fibonacci sequence modulo p

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