AlanH
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Next privilege 2,000 Rep.
 Dec 1 asked Give upper and lower bound for $\left|\cos{na} + \frac{\sin{nb}}{n}\right|$ Nov 25 asked How to find the maximum and minimum of $\dfrac{\sin x}{x^2+1}$? Nov 11 asked How to show $a_n = \frac{n+1}{n-1}$ is strictly decreasing by induction? Jun 26 asked Showing path connected matrices of a group $G$ is a normal subgroup Jun 21 asked Showing the topologists sine curve is connected (slight variation) Jun 19 asked Understanding equivalent definitions of left cosets Jun 17 asked Open sets in $\Bbb{R}^2$ and $\Bbb{R}^3$ Jun 17 asked Clarification on quotient groups Jun 17 asked Congruence relation possible typo? Jun 10 asked Clarification needed on finding last two digits of $9^{9^9}$ Jun 9 asked How to determine the parity of a permutation by its cycle decomposition Jun 9 asked Can a group of order $55$ have exactly $20$ elements of order $11$? (Clarification) Jun 8 asked Determining whether or not a group has an element of a specific order Jun 8 asked Showing a compact metric space has a countable dense subset Jun 7 asked What can we say about the order of a group given the order of two elements? Jun 2 asked Find all positive integers $x$ such that $13 \mid (x^2 + 1)$ May 29 asked Showing existence of an element with order $p$ May 26 asked Finding the values of $z$ s.t. $\sum_{n=0}^{\infty} \left( \frac{z}{1+z} \right)^n$ is convergent May 22 asked Proving $\sum_{m=0}^M \binom{m+k}{k} = \binom{k+M+1}{k+1}$ May 19 asked Proving that $X$ is a subgroup of $G$