MathOverview
Reputation
5,817
67/100 score
 Nov 22 reviewed Close How many integers between $10000$ and $99999$, inclusive, are divisible by $3$ or $5$ or $7?$ Nov 22 reviewed Close Uniformly continuous function bounded by A+bx Nov 22 reviewed Close Let $A = \{2,3,4\}$ and $B = \{a,b\}$. List elements of $A\times B$. Nov 22 reviewed Leave Open Prove that $\sqrt[3]5 - \sqrt[4]3$ is Irrational Nov 22 reviewed Close Evaluate $\int_a^b(x-a)^3(b-x)^4 dx$ Nov 22 reviewed Leave Open Could you find limit without using l'Hôpital? Nov 22 reviewed Close Set of permutations of $14$ elements in $S_{14}$ Nov 22 reviewed Close Prove if $7\mid a^2+b^2 \longrightarrow 7\mid a$ and $7\mid b$ Nov 22 reviewed Close Assume D is bounded and f is uniformly continuous on D. Prove that f(D) bounded Nov 22 reviewed Close proof that translation of a function converges to function in $L^1$ Nov 19 revised Exists $y \in K$ such that $\|y-x_0\|=\inf\{\|x-x_0\| :x \in K\}$ for disjoint closed sets $K$ and the set of $\{x_0:\|x_0\|≥b\}$ added 3 characters in body; edited title Nov 19 revised Exists $y \in K$ such that $\|y-x_0\|=\inf\{\|x-x_0\| :x \in K\}$ for disjoint closed sets $K$ and the set of $\{x_0:\|x_0\|≥b\}$ added 3 characters in body; edited title Nov 11 awarded Yearling Nov 2 comment Extended version of Mean-Value Theorem, lower bound result and reference request. @DanielFischer This is a counter example ? If $f (x, y) = e^x (\cos y, \sin y)$ then there not exists $m> 0$ and $M> 0$ such that \$m<\|Df(x)\|_{\mathscr{L}(\mathbb{R}^2,\mathbb{R}^2)}