André Nicolas
Reputation
412,660
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# 412,660 Reputation

193 yesterday
 +50 23:54 5 events Are there any conditions of integration? +30 18:33 3 events $2^{n!}\bmod n$ if $n$ is odd +20 22:34 2 events number raised to a logarithmic fraction +20 18:03 2 events Given $x+y$ and $x\cdot y$, what is $x^3+ y^3$ ? +15 04:29 accept Statistics - Chebychev's Inequalities +10 21:12 upvote How to get the supremum and infimum of a set +10 19:50 upvote Joint distribution function if it is geometric and X is uniform +10 15:48 upvote probability picking random a positive integer +10 07:06 upvote Prove that $p^2 - 4qr$ ($p,q,r$ odd natural numbers) is never a perfect square +10 05:56 upvote Calculate simple expression: $\sqrt[3]{2 + \sqrt{5}} + \sqrt[3]{2 - \sqrt{5}}$ +10 01:41 upvote sum of two independent exponential distribution -2 22:17 downvote Two questions on the Gaussian integers
50 2 days ago
 +10 18:25 upvote Can the limit of a sequence of bounded functions be unbounded? +10 15:01 upvote Prove that $p^2 - 4qr$ ($p,q,r$ odd natural numbers) is never a perfect square +10 05:55 upvote 100 students in two classrooms. +10 04:49 upvote How many solutions does the equation $x_1 + x_2 + x_3 = 11$ have, where $x_1, x_2, x_3$ are nonnegative integers? +10 04:10 upvote Expected Value of Number of Tails Minus Number of Heads
215 Jul 26
 +60 21:53 6 events Prove that $p^2 - 4qr$ ($p,q,r$ odd natural numbers) is never a perfect square +35 17:38 3 events Find area of this circle +30 23:41 4 events I am stucked in some of this question about sample space and probability +20 09:15 2 events There are $6$ types of cookies. How many different packs of $3$ cookies can the baker package? +10 17:42 upvote rational angles with sines expressible with radicals +10 17:36 upvote Last two digits of $3^{400}$ +10 17:09 upvote Two questions on the Gaussian integers +10 17:04 upvote How many ways are there for $2$ teams to win a best of $7$ series? +10 14:44 upvote Prove that $5^{1/3}+7^{1/2}$ is irrational +10 14:18 upvote Can you raise a number to an irrational exponent? +10 08:23 upvote Probability of 3 Heads in 10 Coin Flips
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