Frank

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Evaluating :$\int \frac{1}{x^{10} + x}dx$

Jul 17, 2012

Finding all primes $p$ such that $\frac{(11^{p-1}-1)}{p}$ is a perfect square

Jul 12, 2012

Prove : $\frac{\cos(x_1) +\cos(x_2) +\cdots+\cos(x_{10})}{\sin(x_1) +\sin(x_2) +\cdots+\sin(x_{10})} \ge 3$

Aug 10, 2012

Integral:$ \int^\infty_{-\infty}\frac{\ln(x^{2}+1)}{x^{2}+1}dx $

Jul 31, 2012

Proving that there exists $a_i \in \{a_1,\dots,a_k\}$ so that for any positive integer $n$ $F(n)$ is divisible by $a_i$

Jul 4, 2012

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