Top network posts

• 33 Calculate $\int_{0}^{1} (x-f(x))^{2016} dx$, given $f(f(x))=x$.
• 32 Are there infinitely many primes $p$ such that $p-2$ and $p+2$ are composite?
• 24 The square roots of different primes are linearly independent over the field of rationals
• 22 Elementary solution of exponential Diophantine equation $2^x - 3^y = 7$.
• 16 Why does "solvability" for groups suggest something about the solution of polynomials?
• 15 Why is $ (2+\sqrt{3})^n+(2-\sqrt{3})^n$ an integer?
• 14 an odd degree polynomial with cyclic Galois group has root all real
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