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# Math Challenge Problems Forum

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

• Replies: 0
• Views: 859
Apr 15th 2014, 04:32 PM
1. ### [SOLVED] Cardinality (easy)

• Replies: 4
• Views: 662
Apr 19th 2010, 03:04 PM
2. ### Egyptian Fractions

• Replies: 9
• Views: 939
Apr 5th 2010, 01:54 PM
3. ### Multiplicatively closed subspaces of M_3(C)

• Replies: 0
• Views: 594
Mar 30th 2010, 02:54 PM
4. ### Topology

• Replies: 3
• Views: 624
Mar 28th 2010, 08:10 AM
5. ### Infinite series (2)

• Replies: 4
• Views: 922
Mar 27th 2010, 10:41 AM
6. ### function

• Replies: 3
• Views: 588
Mar 27th 2010, 04:07 AM
7. ### Fun integral

• Replies: 8
• Views: 740
Mar 26th 2010, 09:59 PM
8. ### Raabe's Integral

• Replies: 11
• Views: 2,186
Mar 26th 2010, 09:58 PM
9. ### Infinite series (8)

• Replies: 2
• Views: 726
Mar 26th 2010, 04:30 PM
10. ### An easy problem!

• Replies: 3
• Views: 760
Mar 20th 2010, 07:55 AM
11. ### a challenging integral (perhaps)

• Replies: 6
• Views: 958
Mar 12th 2010, 09:03 AM
12. ### Infinite series (4)

• Replies: 18
• Views: 2,039
Mar 11th 2010, 06:15 AM
13. ### Integer-valued polynomial

• Replies: 4
• Views: 995
Mar 10th 2010, 07:19 PM
14. ### Calculate the magnitude of dark energy?

• Replies: 0
• Views: 1,385
Mar 3rd 2010, 05:36 PM
15. ### Polynomials

• Replies: 3
• Views: 816
Mar 3rd 2010, 07:26 AM
16. ### Nice result of compactness.

• Replies: 2
• Views: 1,174
Feb 25th 2010, 07:55 PM
17. ### Three-dimensional pythagora's theorem

• Replies: 3
• Views: 852
Feb 23rd 2010, 01:51 AM
18. ### Laurent polynomials

• Replies: 3
• Views: 655
Feb 16th 2010, 08:12 PM
19. ### A problem in discrete geometry

• Replies: 6
• Views: 733
Feb 15th 2010, 07:58 PM
20. ### Another function challenge question

• Replies: 3
• Views: 781
Feb 14th 2010, 09:53 AM
21. ### divergence of a sequence

• Replies: 2
• Views: 804
Feb 13th 2010, 01:55 PM
22. ### Number of derangements of n objects

• Replies: 10
• Views: 1,238
Feb 10th 2010, 08:16 AM
23. ### Complex integral (2)

• Replies: 6
• Views: 830
Feb 6th 2010, 03:31 PM
24. ### Nice Inequality !!

• Replies: 3
• Views: 761
Feb 6th 2010, 03:08 AM
25. ### Basic topology question

• Replies: 2
• Views: 1,047
Feb 5th 2010, 08:36 PM

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