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xbh
  • Member for 6 years, 8 months
  • Last seen more than 1 year ago
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Preparing for entrance exam to enter grad school and learn math.

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Top posts
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6
How modern Chinese singing works if Chinese has tones
Sep 17, 2018
answer
3
博士 Pronunciation /ʃə/ or /ʃi/
Aug 20, 2018
answer
3
Meaning of 依 in 大凉山失依孤儿
Oct 18, 2018
answer
2
Why is 就 needed in 美國國務院稱華府仍未就卡舒吉案下定論? If it's needed, shouldn't it precede 仍未?
Nov 18, 2018
answer
2
How to express 忽悠 in English?
Dec 28, 2017
answer
2
提交给 vs 提交 difference
Jul 29, 2018
answer
2
What does this mean 什么时候我也会看到你们受这份罪的，你们两个?
Oct 13, 2019
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2
What does 我就立刻知道他准是对儿媳干了偷鸡摸狗的勾当 mean? (from 活着, p.3)
Jan 11, 2020
answer
2
Is it allowable in Mainland China to use Traditional Characters?
Feb 23, 2021
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1
好羡慕拍照的人，有这么漂亮的人可以拍: who is 的人?
Mar 19, 2021
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46
How can I justify this without determining the determinant?
13
Value of $\lim_{n\to \infty} \frac{1}{2^n} \sum_{k=1}^{2^n} \{\log_{2}k\}$
12
Solve: $\log_3(5(2^2+3^2)(2^4+3^4)(2^8+3^8)(2^{16}+3^{16})(2^{32}+3^{32})+2^{64})=?$
10
Justify: if $x\gt 0$, $\;\lim_{n\to\infty} \sqrt{n}\cdot{\overbrace{\sin\sin\cdots\sin}^{n\space\text{sines}}(x)}=\sqrt{3}$
10
$ \begin{vmatrix} f(a) & g(a) & h(a) \\ f(b) & g(b) & h(b) \\ f'(c) & g'(c) & h'(c) \\ \end{vmatrix} =0 $