André Nicolas
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# 361,284 Reputation

200 today
 +90 13 mins ago 12 events Why are we justified in using the real numbers to do geometry? +30 6 hours ago 3 events Let $\alpha, \beta \in \mathbb{C}$, such that $\alpha + \beta$, and $\alpha\beta$ are algebraic. Show that $\alpha$ and $\beta$ are algebraic. +30 8 hours ago 3 events Finding values that make $xy=x+y+z$ true. +10 8 hours ago upvote Find all non-negative integer solutions of $x+y+z=20$ +10 11 hours ago upvote Probability involving Standard Deviation and Mean +10 12 hours ago upvote Zeta functions in Chebychev's Prime Number theory +10 12 hours ago upvote Why does a limit at infinity not exist? +10 13 hours ago upvote Odds of 2 players meetings in a 8 person single elimination tournament
208 yesterday
 +35 05:14 3 events Why $\sum_{t=2}^T \frac{1}{t^{\alpha-1}} \leq \frac{1}{\alpha-2}$? +35 / -2 12:51 4 events Linear Transformation with $F=\mathbb Q$ or $F=\mathbb{R}$ +30 22:49 3 events Why are we justified in using the real numbers to do geometry? +25 17:40 2 events Choosing numbers at random from a set $\{0,1,2, \cdots 9\}$ +25 06:55 2 events $\lfloor\log{p_{n}}\rfloor$ having more than one solution for individual $k$ +10 18:14 upvote Combinatorially prove that $\sum_{i=0}^n {n \choose i} 2^i = 3^n$ +10 16:07 upvote Is the following matrix invertible? +10 14:50 upvote Find the sum of all real solutions for $x$ to the equation $(x^2 + 2x + 3)^{(x^2+2x+3)^{(x^2+2x+3)}} = 2012.$ +10 11:31 upvote Simple NT/Algebra Proof +10 07:10 upvote Validity of a statement on a function being infinitely differentiable at a point +10 02:46 upvote How to find all possible combinations of a set of options?
233 2 days ago
 +45 10:40 4 events Arcsin domain under differentiation +35 17:40 3 events What is the general solution to 12x = 9 (mod n)? +30 18:40 3 events Write $1, 2, \dots, n^2$ into a $n \times n$ square grid such that sum of each row and column is a power of 2 +25 / -2 17:21 3 events First Order Logic problem with Compactness theorem +15 05:11 accept Joint distribution functions and finding the bounds +15 01:41 accept Order of finite group +10 14:34 upvote Suppose $\sum\limits_{n=1}^\infty b_n$ diverges and $b_n\gt 0$, show that the series $\sum\limits_{n=1}^\infty \frac{b_n}{1+b_n}$ also diverges +10 11:43 upvote Are these logical predicate translations valid? +10 10:51 upvote Convergence of $\sum_{-\infty}^{\infty}e^{-\pi tn^2}$ +10 08:50 upvote Help needed…Statistics probability and z table…stuck +10 03:51 upvote Probability: If you roll 6 fair dice, what is the probability that you roll exactly 4 different numbers? +10 00:28 upvote Probability of rolling the first 6 on an even throw? +10 00:04 upvote $\lfloor\log{p_{n}}\rfloor$ having more than one solution for individual $k$ +15 / -15 18:21 2 events Determine probability if player wins game
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