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Mathematics
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chris
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question
8
If $G$ has no proper subgroup, then $G$ is cyclic of prime order
Nov 24, 2014
question
5
Use Viete's relations to prove the roots of the equation $x^3+ax+b=0$ satisfy $(x_1-x_2)^2(x_1-x_3)^2(x_2-x_3)^2=-4a^3-27b^2$
Dec 13, 2017
question
4
$\int f=0$ implies $f=0$ almost everywhere [duplicate]
May 5, 2016
question
4
Write the function $\frac{1}{(z+1)(3-z)}$ as a Laurent series.
Apr 29, 2017
question
3
Prove that the union of the interior of a set and the boundary of the set is the closure of the set
Mar 8, 2014
question
3
Supposed X and Y are metric spaces and $f:X \rightarrow Y$ and $g:X \rightarrow Y$ are continuous prove $\{x \in X:f(x)=g(x)\} $ is a closed set
Mar 8, 2014
question
3
prove the set of all spheres with rational center and radius is countable
Mar 10, 2014
question
3
At what points is the following function continuous?
May 10, 2016
question
2
solve $\sin(z)=-1$ in the set of complex numbers
May 5, 2016
question
2
Prove a cauchy sequence in $(X,\rho)$ maps to a cauchy sequence in $(Y,\sigma)$
May 5, 2016