Mathematics
GohP.iHan's user avatar
GohP.iHan's user avatar
GohP.iHan's user avatar
GohP.iHan
  • Member for 9 years, 6 months
  • Last seen more than a week ago
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31
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26
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6
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All Questions Answers
Score Newest
question
26
Closed form for $ S(m) = \sum_{n=1}^\infty \frac{2^n \cdot n^m}{\binom{2n}n} $ for integer $m$?
May 14, 2016
question
17
Bounds of $1^n + 2^{n-1} + 3^{n-2} + \cdots + n^1$
Jul 14, 2020
question
13
$a,b,c,d\ne 0$ are roots (of $x$) to the equation $ x^4 + ax^3 + bx^2 + cx + d = 0 $
May 1, 2016
question
8
Prove (or disprove): $a\times b=c\times d$, the solutions for $x$ in the equation $\frac {a^x+b^x}{c^x+d^x} = \frac{a+b}{c+d}$ is only $\pm 1$.
Apr 16, 2015
answer
8
Calculate the integral without knowing the integrand
May 20, 2014
question
6
True? $\sum_{n=1}^\infty {n+m-1 \choose m}^{-1} = 1 + \frac {1}{m-1} $
May 20, 2014
answer
5
Integration help!
Mar 8, 2015
question
5
A caboodle of Pell's equation in one? $x^2+y^2-5xy+5=0$
Jan 19, 2021
question
4
Other variation of Nicomachus's Theorem?
May 21, 2015
question
4
Minimize $f(m)=\sum_{n=1}^\infty n^m / m^n $
Jun 13, 2015
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10
What was the purpose of having Zion?

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