Top network posts

• 44 Why study finite-dimensional vector spaces in the abstract if they are all isomorphic to $R^n$?
• 12 How can I show that a bijection between $[0,1)$ and $(0,1)$ cannot be continuous?
• 11 If $a_n+b_n\sqrt{3}=(2+\sqrt{3})^n$, then what's $\lim_{n\rightarrow\infty}\frac{a_n}{b_n}$?
• 8 Polynomial form of $\det(A+xB)$
• 7 Show that:$\prod_{n=1}^{\infty}\left({2n\over 2n-1}\right)^2\left(\cdots\right)={\pi\over2}\cdot{\phi\over5}\cdot\sqrt{\phi\sqrt{5}}$
• 6 Four Fundamental subspaces
• 6 Surprising identities / equations
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