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Jul
16
accepted Ternary equivalence relations that are not equivalent to some binary equivalance
Jun
5
accepted what is the parametric form for “mystery curve”?
May
28
accepted n points can be equidistant from each other only in dimensions $\ge n-1$?
Apr
19
accepted How to generate complicated looking identities such as $\sqrt [3] {2 + \sqrt 5} - \sqrt [3] {2 - \sqrt 5}=1$ easily?
Jan
14
accepted How often is $1+\prod_{k=1}^n p_k$ not prime?
Dec
31
accepted What are solutions to $2^x=x$?
Dec
20
accepted Why $ \int_0^{\infty} du \, \frac{e^{-3 u} - e^{-4 u}}{u} = \int_0^{\infty} du \, \int_3^4 dt \, e^{-u t} \\ $?
Oct
8
accepted Limit $\lim_{x\to\infty} \frac {a_nx^n+a_{n-1}x^{n-1}+\cdots+a_0}{{b_nx^n+b_{n-1}x^{n-1}+\cdots+b_0}}$
Sep
22
accepted $\lim_{x\to\infty}\sqrt [n] {p_n(x)}-\sqrt [m] {p_m(x})$ where $p_k(x)$ is polynomial of order k.
Mar
19
accepted Largest possible 2D combination not containing 2 common rectangles
Mar
17
accepted For which $\alpha$ does the series $\sum_{n = 1}^{\infty}\big(2^{n^{-\alpha}}\!\! - \!1\big)$ converge?
Dec
3
accepted Is $f(x)>g(x) \iff \frac {\operatorname d}{\operatorname d x }f(x)>\frac {\operatorname d}{\operatorname d x }g(x)$?
Nov
17
accepted What's the deal with integration?
Nov
12
accepted which one is larger $\sqrt[n]{x+\delta}-\sqrt[n]{x}$ or $\sqrt[n]{x}-\sqrt[n]{x-\delta}$?
Sep
30
accepted Sum $\sum_{k=1}^{n}a^k\sin(k \frac{2\pi}{l})$
Jul
31
accepted Are $\pi$ and $e$ algebraically independent?
Jul
27
accepted if terms of an alternating series approach 0 then that alternating series converges.
Jun
6
accepted $\sqrt 2$ is even?
May
21
accepted Why substitution method does not work for $\int (x-\frac{1}{2x} )^2\, \mathrm dx$?
May
17
accepted Strong characterization of $\mathbb C$ with respect to $\mathbb R$