Mathematics
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user399601
  • Member for 6 years, 11 months
  • Last seen more than 5 years ago
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All Questions Answers
Score Newest
answer
47
Why study finite-dimensional vector spaces in the abstract if they are all isomorphic to $R^n$?
Dec 26, 2016
answer
13
How can I show that a bijection between $[0,1)$ and $(0,1)$ cannot be continuous?
Dec 28, 2016
answer
11
If $a_n+b_n\sqrt{3}=(2+\sqrt{3})^n$, then what's $\lim_{n\rightarrow\infty}\frac{a_n}{b_n}$?
Apr 9, 2017
answer
11
Collection of surprising identities and equations.
Feb 25, 2017
answer
9
Show that:$\prod_{n=1}^{\infty}\left({2n\over 2n-1}\right)^2\left(\cdots\right)={\pi\over2}\cdot{\phi\over5}\cdot\sqrt{\phi\sqrt{5}}$
Dec 26, 2016
answer
8
Polynomial form of $\det(A+xB)$
Mar 16, 2017
answer
5
Four Fundamental subspaces
Dec 26, 2016
answer
4
Find a subgroup of $\mathbb{Z}_{12}\oplus \mathbb{Z}_{4}\oplus \mathbb{Z}_{15}$ of order 9
Apr 9, 2017
answer
4
If A commutes with B, does A commute with the Cholesky decomposition of B?
Feb 10, 2017
answer
4
Show the complex sequence converges to $\sqrt{2}$
Jan 29, 2017

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