Lee Dae Seok
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# 15 Actions

 Feb9 asked $G$ is a finite group and $G_1$,$G_2$ are subgroup that $G_1 \cap G_2=\{1\}$, then $|G_1|.|G_2| \big| |G|$? Jan24 awarded Supporter Jan24 answered Consider a function $f(x) = x^4+x^3+x^2+x+1$, where x is an integer, $x\gt 1$. What will be the remainder when $f(x^5)$ is divided by $f(x)$? Jan24 awarded Editor Jan24 revised Prove $n^\frac{1+2}{\sqrt{\log n}} = O(n \log n)$ added 9 characters in body Jan24 comment Prove $n^\frac{1+2}{\sqrt{\log n}} = O(n \log n)$ Is it {1+2}/sqrt{n}? (=3/sqrt{n})? Jan24 answered Prove $n^\frac{1+2}{\sqrt{\log n}} = O(n \log n)$ Jan24 comment Prove $n^\frac{1+2}{\sqrt{\log n}} = O(n \log n)$ do you mean n^{1+2/sqrt{logn}} ? Jan23 comment Is there any manifold that is not a subspace of a finite dimensional euclidean space? I'm not sure, but someone says that it's a special case, when the space is 'riemannian'.. Jan23 asked Is there any manifold that is not a subspace of a finite dimensional euclidean space? Jan20 awarded Teacher Jan20 answered Cyclic group of order $4$ and Klein four-group are not isomorphic. Jan18 comment Is this a transcendental number? Oh thanks. I didn't think enough.. Jan18 awarded Student Jan18 asked Is this a transcendental number?