Mathematics
Zero
  • Santa Cruz, Bolivia
  • Member for 9 years, 7 months
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25 Prove a square is homeomorphic to a circle Sep 2 '15
18 Prove that $n^{2003}+n+1$ is composite for every $n\in \mathbb{N} \backslash\{1\}$ Mar 10 '12
18 Is $\sqrt{64}$ considered $8$? or is it $8,-8$? Sep 24 '15
15 Roots with equal fractional parts Mar 3 '12
14 Let $x$ and $y$ be positive integers such that $xy \mid x^2+y^2+1$. Mar 1 '12
14 The $n$-disk $D^n$ quotiented by its boundary $S^{n-1}$ gives $S^n$ Nov 13 '15
13 If $\dfrac{4x^2-1}{4x^2-y^2}$ is an integer, then it is $1$ Oct 17 '12
13 Differentiability of composition with every path implies differentiability Mar 4 '17
12 A problem about a sequence and prime factorization May 18 '12
9 On special normal subgroup of a group Jan 23 '15
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