Mathematics
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pretzelman
  • Member for 9 years, 1 month
  • Last seen more than 7 years ago
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16
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35
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Top posts
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All Questions Answers
Score Newest
question
7
Prove that a non-abelian group of order $pq$ ($p<q$) has a nonnormal subgroup of index $q$
Oct 7, 2014
question
4
$|x^2-xy-y^2|=1$ implies that $x=\pm F_{n+1},\; y=\pm F_n$
Nov 5, 2015
question
3
Finding roots in finite fields.
Apr 26, 2015
question
3
Find the # of elements of $F$ that can be written in the form $a^n-a$.
Apr 28, 2015
question
2
$S=\{0,1,2,...,q^2-1\}$, is there a way to figure out how many elements contained in $S$ can be written as the sum of $2$ squares?
Jan 31, 2015
question
2
Use the 'rule of sum to prove that $\sum_{k=0}^n 2^k=2^{n+1}-1$.'
Aug 31, 2015
question
2
Method of Characteristics for $(1+x^2)u_x+2u_y=y\cdot(1+u^2)$
May 27, 2016
question
1
Prove that $C_H(K) = N_H(K)$ for $G=H \rtimes_{\phi} K$
Oct 29, 2014
question
1
Finding an equation of a hyperplane given 2 lines
Mar 29, 2015
question
1
If field $K/F$ is generated by the $\alpha_1,...,\alpha_n$, then an $\sigma\in $ Aut$(K/F)$ of $K$ uniquely determined
Apr 5, 2015
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12
Drawing a circle with an angle using TikZ

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