timvermeulen
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 Nov5 answered Inequality proof by induction, what to do next in the step Oct19 answered There are 10 different people at a party. How many ways are there to pair them off into a collection of five pairings? Jul7 asked Prove that $a^3+b^3+c^3 \geq a^2b+b^2c+c^2a$ Jun26 asked Finding the ratio of two sides of a triangle with known angles Jun22 asked Prove that $\sum_{i=1}^{m-1} i^k$ is divisible by $m$ Jun16 asked choosing $5$ non consecutive books from a shelve of $12$ Jun13 asked Proving there are no integer solutions for $3x^2=9+y^3$ Jun8 asked Factoring a third degree polynomial May31 answered Counting squares of maximum size in a rectangle May31 asked Finding the largest $n \in \mathbb{N}$ for which $n-7$ divides $n^3-7$ May31 answered finding the number of non-appearing integers in three different sequences May31 answered How to find the number of combinations of $x,y,z$ that satisfy an equation May30 asked Simplifying $a(a-2) = b(b+2)$ May30 answered Divisibility and factors May29 asked Power tower inequality May28 answered Comparing $2^n$ to $n!$ May25 answered How is “n+n/2+n/4…1” equal to “2n-1” using the formula for geometric series? May24 asked Finding the sum of a Taylor expansion May20 answered proving $n!>2^n\;\;\forall \;n≥4\;$ by mathematical induction Jan9 answered Is the term true? $\frac{\theta}{\theta - 1 } = \frac{1} {\theta-1} + 1$