Mathematics
John Lou's user avatar
John Lou's user avatar
John Lou's user avatar
John Lou
  • Member for 6 years, 11 months
  • Last seen more than a month ago
  • Houston, TX, United States
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All Questions Answers
Score Newest
answer
11
Find the simplified form of $\frac {1}{\cos x + \sin x}$
May 24, 2017
answer
7
Show that for every $n\in\mathbb{N}$, either $7 \mid n^3 - 1$, $7 \mid n^3$, or $7 \mid n^3 + 1$
Nov 15, 2017
answer
5
Find the limit of the sequence $a_n=n\sin{\frac{\pi}{2n}}$
Sep 16, 2017
answer
5
For how many integers $a$ between $-200$ and $-1$ inclusive is the product of the divisors of $a$ negative?
Nov 12, 2017
answer
5
What are the names of numbers in the binary system?
May 1, 2017
answer
5
Finding $\lim_{x\to\pi}\frac{\sin5x}{x-\pi}$ without using L'Hostpital's rule
Oct 20, 2017
answer
4
How to solve for the roots of an equation of two variables ? For example $\frac{4L^6-19L^4x}{9}+\frac{8L^2x^2}{3}-x^3$.
Sep 12, 2017
question
4
Integration of $f(x)$ where $f(x)$ is $x$ in not in base $10$, used as a decimal
Apr 28, 2017
answer
4
smallest number of socks to guarantee that the selection contains at least $10$ pairs
Apr 29, 2017
answer
4
General solution of $(\sqrt3 - 1)\sin\theta + (\sqrt3 + 1)\cos\theta =2 $
Nov 18, 2017
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7
Determine the geometry of each nitrogen atom in formamidinium ion

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