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- An Area property of Triangles
by elim » Wed Aug 31, 2011 12:42 pm
- 3 Replies
- 4445 Views
- Last post by Bataouche
Mon Sep 10, 2012 1:28 pm
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- A kind of polynomial: $\int_0^1 P^2 = (n+1)(\int_0^1 P)^2$
by elim » Mon Mar 05, 2012 8:49 am
- 0 Replies
- 4003 Views
- Last post by elim
Mon Mar 05, 2012 8:49 am
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- Show a set of numbers are irrational
by elim » Sat Feb 04, 2012 10:18 am
- 0 Replies
- 3837 Views
- Last post by elim
Sat Feb 04, 2012 10:18 am
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- Real polynomial
by elim » Sun Sep 25, 2011 9:40 pm
- 2 Replies
- 4277 Views
- Last post by seamsql
Tue Jan 03, 2012 1:23 am
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- Close form of $1+\sum_{j=1}^n j! j$
by elim » Tue Nov 15, 2011 8:21 pm
- 1 Replies
- 4075 Views
- Last post by elim
Tue Nov 15, 2011 8:25 pm
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- Pell's equation $m^2 = pn^2+1$ ($p$ is prime)
by elim » Tue Nov 15, 2011 10:50 am
- 0 Replies
- 2407 Views
- Last post by elim
Tue Nov 15, 2011 10:50 am
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- If n ≥ 4, then k ≥ 2n - (IMO SL 1987-P2)
by elim » Fri Oct 07, 2011 3:54 pm
- 0 Replies
- 4213 Views
- Last post by elim
Fri Oct 07, 2011 3:54 pm
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- Bosnia 2009 Problem 6
by elim » Wed Sep 28, 2011 12:53 pm
- 0 Replies
- 2423 Views
- Last post by elim
Wed Sep 28, 2011 12:53 pm
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- A property of greatest common divider
by elim » Tue Sep 27, 2011 5:40 pm
- 0 Replies
- 2154 Views
- Last post by elim
Tue Sep 27, 2011 5:40 pm
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- A sequence with inequality
by elim » Tue Sep 13, 2011 6:30 am
- 1 Replies
- 2238 Views
- Last post by elim
Tue Sep 13, 2011 6:32 am
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- A Collection of special trigonometric identities
by elim » Mon Sep 12, 2011 10:15 am
- 1 Replies
- 2479 Views
- Last post by elim
Mon Sep 12, 2011 10:21 am
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- MaxMin Difference Question Over $S_n$
by elim » Thu Aug 25, 2011 11:15 am
- 1 Replies
- 2033 Views
- Last post by elim
Fri Aug 26, 2011 11:42 am
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- Not rational
by elim » Tue Aug 16, 2011 8:53 am
- 1 Replies
- 1847 Views
- Last post by elim
Tue Aug 16, 2011 8:59 am
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- Bound of a sum of squares
by elim » Sun Aug 14, 2011 8:17 pm
- 1 Replies
- 2259 Views
- Last post by elim
Sun Aug 14, 2011 8:28 pm
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- Series comparison
by elim » Thu Aug 11, 2011 8:51 am
- 1 Replies
- 2061 Views
- Last post by elim
Thu Aug 11, 2011 10:48 am
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- A property of Pythagorean triples
by karka » Tue Aug 02, 2011 10:37 am
- 3 Replies
- 2598 Views
- Last post by Keesiaday
Fri Aug 05, 2011 4:05 pm
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- A property of Harmonic sum
by elim » Fri Aug 05, 2011 7:00 am
- 1 Replies
- 2372 Views
- Last post by elim
Fri Aug 05, 2011 7:01 am
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- Is {(cos kθ, sin kθ) | k = 1,2,...} dense in unit circle?
by karka » Tue Aug 02, 2011 10:34 am
- 0 Replies
- 2300 Views
- Last post by karka
Tue Aug 02, 2011 10:34 am
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- An triangular inequality [1]
by elim » Fri Jul 29, 2011 8:05 am
- 1 Replies
- 2061 Views
- Last post by elim
Fri Jul 29, 2011 8:31 am
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- You have great content!
by SEOSoftware » Fri Jun 17, 2011 8:06 am
- 0 Replies
- 2861 Views
- Last post by SEOSoftware
Fri Jun 17, 2011 8:06 am
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- Prove two properties for functions
by elim » Wed Jun 15, 2011 11:41 am
- 0 Replies
- 2239 Views
- Last post by elim
Wed Jun 15, 2011 11:41 am
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- When $f\cdot {f}'' \le {f}' ^2$
by elim » Tue Apr 12, 2011 10:07 pm
- 1 Replies
- 2063 Views
- Last post by elim
Tue Apr 12, 2011 10:22 pm
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- Limit Problems
by elim » Fri Feb 11, 2011 2:19 pm
- 2 Replies
- 2124 Views
- Last post by elim
Mon Feb 21, 2011 12:40 pm
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- A problem about decimal number expression
by elim » Tue Feb 15, 2011 10:01 pm
- 0 Replies
- 2530 Views
- Last post by elim
Tue Feb 15, 2011 10:01 pm
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- Cubic Equations
by elim » Tue Feb 15, 2011 9:17 pm
- 1 Replies
- 2293 Views
- Last post by elim
Tue Feb 15, 2011 9:23 pm
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