Russian Language
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FFjet's user avatar
FFjet's user avatar
FFjet
  • Member for 3 years
  • Last seen more than a month ago
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answers
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About

I am now studying mathematics, and I haven't gone to college yet.

Interested in a lot of things, such as maths, physics and music.

I am also fond of Russian stuffs, including Russian music, literature, history, and military. Currently I'm learning Русский язык.

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33
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Posts
33
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Posts
33
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Top posts
All Questions Answers
Score Newest
question
2
Questions about "бежать" and "побежать"
Jan 8, 2021
question
1
The history of which case to follow after a number in the nominative case
Feb 5, 2021
question
1
Can стакан сока be used here instead of сок?
Nov 24, 2020
Top network posts
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56
Prove/disprove $(\int_0^{2 \pi} \!\!\cos f(x) \, d x)^2+(\int_0^{2 \pi}\!\!\! \sqrt{(f'(x))^2+\sin ^2 f(x)} \, dx)^2\ge 4\pi^2$
24
Existence of $A$ such that $ \lim_{x\to\infty}\operatorname{poly}(x) e^{-x} \sum_{n\in A} \frac{x^n}{n!}=1 $
18
Prove the determinant is $0$
11
How to calculate $\prod\limits_{p}\frac{p^2+1}{p^2-1}$?
11
Prove/disprove $(\int_{0}^{2 \pi} \!\!\cos f(x) d x)^{2}+(\int_{0}^{2 \pi}\!\!\! \sqrt{(f'(x))^{2}+\sin ^{2} f(x)}dx)^{2}\ge 4\pi^{2}$

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