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Mathematics
羽又重瞳's user avatar
羽又重瞳's user avatar
羽又重瞳's user avatar
羽又重瞳
  • Member for 3 years, 11 months
  • Last seen more than a month ago
  • China
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question
3
Find an explicit formula for $ \sum_{n=0}^{\infty}{x^{n^2}} ,\quad \forall x \in (0,1) $
Nov 20, 2020
question
3
$\sum_{i=1}^{n}x_i^2\ln x_i+\sum_{i=1}^{n}y_i^2\ln y_i\leq a^2\sum_{i=1}^{n}\frac{x_iy_i}{a}\ln \frac{x_iy_i}{a}$
Jul 2, 2021
question
1
Expressing $ (\mathbb{Z}/2^k\mathbb{Z})^{\times} $ in terms of powers of $5$
Mar 18, 2021
question
1
Solutions of $ 5^x+5^{x^2}=4^x+6^{x^2} \quad \left(x\in \mathbb{R}\right)$
Jun 25, 2021
answer
1
True or False? If the limit of $[f(x)-g(x)]$ as x approaches $a = 0$, then the limit of $f(x), g(x)$, as $x$ approaches $a$, are equal.
Mar 26, 2021
question
0
Find $\sum_{n=1}^{\infty}\left({\frac{1}{4n-3}+\frac{1}{4n-1}-\frac{1}{2n}}\right)$
Oct 31, 2020
question
0
Solve $ \int_{0}^{y}{f(x)g(x,y)}dx=\int_{0}^{y}{h(x)}dx $
Nov 27, 2020
question
0
$ \lim_{T_{0} \to +\infty} {\int_{\Gamma_{T_0}}df+\frac{\sin 4z}{z}dz} $
Jan 8, 2021
question
0
$ \frac{x}{\ln x}=\frac{y}{\ln y}=m, \text{to prove } x-y>2\sqrt{\left(m-e\right)\left(3m-e\right)}$
Apr 26, 2021
answer
0
Rewriting basis of vector in terms of another another basis vector
Nov 3, 2020