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Mathematics
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chubakueno
  • Member for 11 years, 11 months
  • Last seen more than a week ago
  • Lima, Peru
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Curiosity-driven organism doodling in the intergalactic infinity.

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24
Prove that $a^3+b^3+c^3 \geq a^2b+b^2c+c^2a$
Jul 13, 2013
24
Algorithm to get the maximum size of n squares that fit into a rectangle with a given width and height
Aug 12, 2013
24
2013 USAMO problem 5
Jul 20, 2013
17
Show the identity $\frac{a-b}{a+b}+\frac{b-c}{b+c}+\frac{c-a}{c+a}=-\frac{a-b}{a+b}\cdot\frac{b-c}{b+c}\cdot\frac{c-a}{c+a}$
Dec 27, 2013
17
Proving that $\frac{n!-1}{2n+7}$ is not an integer when $n>8$
Jun 7, 2013
16
What is the most surprising result that you have personally discovered?
Oct 6, 2013
15
Prove that there are exactly 16 solutions to this problem.
Aug 17, 2013
14
Three consecutive integers which are power of prime but not prime
May 29, 2014
14
Sums of rising factorial powers [duplicate]
Sep 4, 2013
12
Solve this Diophantine Equation: $a^3-b^3 = ab+61$
Oct 6, 2013
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31
Largest set of cocircular points
16
Why have parasites not evolved to be harmless?
15
Resize command prompt through commands
9
State of the art in the expected length of the Longest Increasing Subsequence of a random permutation
8
Rad-Hard vs Space-Hard computing