# Math Challenge Problems Forum

Math Challenge Problem Forum: For challenging math problems (that you can solve yourself)

• Replies: 0
• Views: 1,392
Apr 15th 2014, 04:32 PM
1. ### Limit (7)

• Replies: 9
• Views: 890
Dec 15th 2009, 09:17 PM
2. ### Integral with parameters

• Replies: 3
• Views: 879
Dec 14th 2009, 08:00 PM
3. ### Solving an equation (2)

• Replies: 5
• Views: 714
Dec 13th 2009, 07:54 PM
4. ### Infinite series (7)

• Replies: 7
• Views: 1,036
Dec 12th 2009, 10:29 PM
5. ### An integral with a parameter

• Replies: 4
• Views: 1,072
Dec 12th 2009, 02:41 PM
6. ### Series in Trigonometry

• Replies: 10
• Views: 886
Dec 10th 2009, 02:04 AM
7. ### The Impossible Problem

• Replies: 1
• Views: 792
Dec 4th 2009, 07:36 AM
8. ### A semiprime proof

• Replies: 6
• Views: 880
Nov 30th 2009, 02:51 AM
9. ### interesting combinatorial identity proof

• Replies: 1
• Views: 893
Nov 29th 2009, 04:34 PM
10. ### i identity

• Replies: 2
• Views: 693
Nov 28th 2009, 12:28 PM
11. ### Math Challenge Web-site

• Replies: 2
• Views: 776
Nov 26th 2009, 08:39 PM
12. ### Number Theory (1)

• Replies: 3
• Views: 980
Nov 22nd 2009, 05:31 PM
13. ### Triangle inside rectangle

• Replies: 2
• Views: 1,931
Nov 20th 2009, 05:41 PM

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15. ### Size!

• Replies: 4
• Views: 1,173
Nov 16th 2009, 03:40 PM
16. ### About Euler's constant (4)...

• Replies: 4
• Views: 1,112
Nov 16th 2009, 07:37 AM
17. ### Probabilistic Group Theory

• Replies: 1
• Views: 1,003
Nov 15th 2009, 10:59 PM
18. ### Hyperfactorial function

• Replies: 3
• Views: 1,063
Nov 15th 2009, 08:55 AM
19. ### Integer puzzle

• Replies: 2
• Views: 791
Nov 14th 2009, 12:47 PM
20. ### About Euler's constant (3)...

• Replies: 1
• Views: 753
Nov 11th 2009, 07:02 AM
21. ### Trigonometric Inequality

• Replies: 6
• Views: 1,205
Nov 10th 2009, 06:55 AM
22. ### Set theory problem

• Replies: 4
• Views: 899
Nov 9th 2009, 09:22 PM
23. ### About Euler's constant (2)...

• Replies: 3
• Views: 1,014
Nov 9th 2009, 03:30 AM
24. ### About Euler's constant (1)...

• Replies: 13
• Views: 1,309
Nov 5th 2009, 11:10 AM
25. ### Find the number of extremum

• Replies: 4
• Views: 979
Oct 30th 2009, 02:13 AM
26. ### Which lightbulbs are on?

• Replies: 10
• Views: 1,850
Oct 28th 2009, 01:15 AM

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