TeX - LaTeX
zeraoulia rafik's user avatar
zeraoulia rafik's user avatar
zeraoulia rafik's user avatar
zeraoulia rafik
  • Member for 7 years, 11 months
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i'm a teacher in high school ,interesting to math number theory and dynamical systems soo ...

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Is there arabic latex allow me to write mathematical paper with question arabic and latine math?
Oct 14, 2015
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37
Is this $\gcd(0, 0) = 0$ a wrong belief in mathematics or it is true by convention?
20
Infinite sum of reciprocals of pentagonal numbers
16
Prove that:$\sum_{i=1}^n\frac{1}{x_i}-\sum_{i<j}\frac{1}{x_i+x_j}+\sum_{i<j<k}\frac{1}{x_i+x_j+x_k}-\cdots+(-1)^{n-1}\frac{1}{x_1+\ldots+x_n}>0.$?
14
How i show this beautiful inequality :$\frac{x^n}{x^m+y^m}+\frac{y^n}{y^m+z^m}+\frac{z^n}{z^m+x^m}\geq \frac{3} {2}(\frac{1}{\sqrt{3}})^{n-m}$?
12
Is there a fixed integer $x>1$ satisfing ${\sigma}^{k}(x)\equiv 0\pmod{x}$ for all positive integers $k$?

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