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AndreasT

Apparently, this user prefers to keep an air of mystery about them.

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  • Member for 8 years, 2 months
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33 Sum of factors of a huge number. Dec 24 '15
27 Is there a name for this type of polygon? Dec 6 '15
13 Show that both mixed partial derivatives exist at the origin but are not equal Mar 10 '13
12 supremum of uncountable families of Borel measurable functions Jul 26 '13
11 How do I find the image of the functions $y=2$ and $y = 2x - 6$? May 10 '13
10 Prove that any two left cosets $aH, bH$ either coincide or are disjoint, and prove Lagrange's theorem Dec 31 '12
8 $\lim_{x\to \infty}\left(\frac{2\arctan(x)}{\pi}\right)^x=? $ Jun 6 '13
7 What is closed-form expression for $F(n)$ when $F(n)=F(n-1)+F(n-2)$ and $F(0)=a$,$F(1)=b$ and $a,b>0$? Feb 21 '13
5 Understading the idea behind Gradient vector fields.. Jun 10 '13
5 Show that the only elements equal to their own inverses are $1$ and $p-1$. Nov 26 '15
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