Mathematics
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Stefan4024
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All Questions Answers
Score Newest
answer
71
Is $0! = 1$ because there is only one way to do nothing?
Jul 1, 2016
question
43
Fermat's Last Theorem near misses?
Oct 14, 2013
answer
25
Show that from a group of seven people whose (integer) ages add up to 332 one can select three people with the total age at least 142.
Aug 27, 2015
question
21
Prove $\sqrt{a} + \sqrt{b} + \sqrt{c} \ge ab + bc + ca$
Mar 20, 2013
answer
20
Is there a way to get trig functions without a calculator?
Sep 22, 2013
question
19
Find the smallest k such that $n^k > \sum_{i=0}^{n-1} i^k$
Feb 21, 2014
question
18
Prove $\sqrt{3a + b^3} + \sqrt{3b + c^3} + \sqrt{3c + a^3} \ge 6$
Mar 20, 2013
answer
17
Is every finite group a normal subgroup of a symmetric group?
Jun 27, 2016
answer
15
Objects are shuffled. What is the probability that exactly one object remains in its original position?
Jan 24, 2017
answer
14
Proving that the polynomial $10X^6-15X^2+7$ is irreducible in $\mathbb{Q}[X].$
Jul 2, 2018
Top Meta posts
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31
Answering old questions with already accepted answers
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11
Group the numbers C++
7
Hungarian algorithm with multiple assignments
7
Apple eating problem
6
Number of combinations with LEGO plastic bricks C++
5
How to delete all event listeners at once in AS3

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