Mathematics
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tyuiop
  • Member for 3 years, 11 months
  • Last seen more than a month ago
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All Questions Answers
Score Newest
question
8
$\lim\limits_{n\to \infty} \int_0^1 |f(x)-a_nx-b_n| dx=0$ implies $(a_n)_n,(b_n)_n$ are convergent
Mar 8, 2019
question
7
$n\geq 2 $ such that the equation $x^2-x+\hat2=\hat0$ has an unique solution in $\mathbb Z_n$
Feb 25, 2019
question
6
Example of a non-abelian group $(G,.)$ where $a^2b=ba^2\Rightarrow ab=ba $
Mar 4, 2019
question
5
The number of polynomial functions $f:A\to A$ is $|A|^2$ if and only if $x^2=x$ for all $x\in A$.
Mar 5, 2019
question
4
smallest c s.t. $\int_{0}^1f(x^\frac{1}{n})\ dx \le c\int_0^1 f(x)\ dx $
Mar 7, 2019
question
4
If $I_n=\int_0^1 \frac{x^n}{x^2+2019}\,\mathrm dx$, evaluate $\lim\limits_{n\to \infty} nI_n$
Mar 26, 2019
question
4
Sum of normal vectors to the surfaces of a tetrahedron is zero.
Apr 2, 2020
question
4
Number of subgroups of $\mathbb Z _m \times \mathbb Z_n$
Oct 19, 2019
question
3
number of solutions of $x^2=x$ divides the number of invertible elements in a ring
Mar 5, 2019
question
3
How to evaluate $\iint_A \frac{1}{x^2+y^2}\,\mathrm dx\,\mathrm dy,$ where $A=[\frac{1}{a},a]\times[0,1]$ [duplicate]
Dec 29, 2019

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