Mathematics
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Oleg567
  • Member for 11 years, 1 month
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All Questions Answers
Score Newest
answer
85
How to find out which number is larger without a calculator?
Sep 2, 2015
answer
57
Show that the product of two consecutive natural numbers is never a square.
May 9, 2014
answer
43
One question to know if the number is 1, 2 or 3
Oct 3, 2013
answer
40
Visual explanation of the following statement:
Mar 20, 2014
answer
40
Can all circles of radius $1/n$ be packed in a unit disk, excluding the circle of radius $1/1$?
Oct 26, 2015
answer
37
If $x \neq 0,y \neq 0,$ then $x^2+xy+y^2$ is .....
Apr 3, 2013
question
36
Does there exist rational $a,b,c$, such that $\sqrt[3]{1}+\sqrt[3]{2}+\sqrt[3]{4}=\sqrt[3]{a}+\sqrt[3]{b}+\sqrt[3]{c}$
Jun 16, 2013
answer
27
Is the sum of two sine waves periodic?
Apr 6, 2018
answer
27
Fibonacci number that ends with 2014 zeros?
Jul 19, 2014
question
25
Prove that $\sum\limits_{k=0}^{n-1}\dfrac{1}{\cos^2\frac{\pi k}{n}}=n^2$ for odd $n$
Jul 13, 2013
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Visual C++ 2008 bug?

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