Tim Vermeulen
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 Nov 20 suggested approved edit on Prove that $\sum_{1 \le t \le n, \ (t, n) = 1} t = \dfrac {n\phi(n)}{2}$ Jul 19 suggested approved edit on How to prove that $\frac{\sin \pi x}{\pi x}=\prod_{n=1}^{\infty}(1-\frac{x^2}{n^2})$ Jul 6 suggested approved edit on How to find the minimum value of this expression? Jun 26 suggested rejected edit on Finding the ratio of two sides of a triangle with known angles Jun 22 suggested rejected edit on Permutations and Combinations questions Jun 13 suggested approved edit on Inverse Trigonometry doubt. Jun 6 suggested rejected edit on Why are only fractions with denominator 2 and 5 non-repeating? May 31 suggested approved edit on Counting squares of maximum size in a rectangle May 25 suggested approved edit on How is “n+n/2+n/4…1” equal to “2n-1” using the formula for geometric series? May 25 suggested approved edit on How is “n+n/2+n/4…1” equal to “2n-1” using the formula for geometric series?