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  1. Problem Of The Week #297 Jan 17th, 2018

    Started by anemone, January 17th, 2018 12:08
    potw, problem, read, remember, submission
    • Replies: 0
    • Views: 59
    Last Post: January 17th, 2018 12:08
    by anemone  Go to last post
  2. Problem Of The Week # 295 - Jan 04, 2018

    Started by Ackbach, January 4th, 2018 17:07
    perpendicular, potw, problem, prove, triangle
    • Replies: 1
    • Views: 89
    Last Post: January 12th, 2018 14:39
    by Ackbach  Go to last post
  3. Problem Of The Week #295 Jan 2nd, 2018

    Started by anemone, January 2nd, 2018 10:12
    $ab$, find, potw, problem, remember
    • Replies: 1
    • Views: 121
    Last Post: January 10th, 2018 11:24
    by anemone  Go to last post
  4. Sameer's derivative problem via Facebook

    Started by Prove It, December 30th, 2017 01:17
    • Replies: 0
    • Views: 43
    Last Post: December 30th, 2017 01:17
    by Prove It  Go to last post
  5. Problem Of The Week #292 Dec 10th, 2017

    Started by anemone, December 10th, 2017 09:26
    guidelines, potw, problem, read, remember
    • Replies: 1
    • Views: 143
    Last Post: December 19th, 2017 09:33
    by anemone  Go to last post
  6. Problem Of The Week # 292 - Dec 08, 2017

    Started by Ackbach, December 8th, 2017 12:39
    closed, frac1a_k, left1, potw, problem
    • Replies: 1
    • Views: 108
    Last Post: December 14th, 2017 11:09
    by Ackbach  Go to last post
  7. Problem Of The Week #291 Dec 3rd, 2017

    Started by anemone, December 3rd, 2017 03:45
    $a-bb-ca-c=17$, find, potw, problem, read
    • Replies: 1
    • Views: 127
    Last Post: December 10th, 2017 09:22
    by anemone  Go to last post
  8. Investment Problem

    Started by Kos46, December 1st, 2017 17:08
    fund, investment, problem, solve, stock
    • Replies: 5
    • Views: 179
    Last Post: December 2nd, 2017 23:08
    by Wilmer  Go to last post
  9. Problem Of The Week # 290 - Nov 24, 2017

    Started by Ackbach, November 24th, 2017 16:04
    circle, potw, problem, roots, unit
    • Replies: 1
    • Views: 107
    Last Post: December 1st, 2017 18:13
    by Ackbach  Go to last post
  10. Problem Of The Week # 289 - Nov 16, 2017

    Started by Ackbach, November 16th, 2017 18:14
    $1$, number, potw, problem, terms
    • Replies: 1
    • Views: 117
    Last Post: November 24th, 2017 15:52
    by Ackbach  Go to last post
  11. Mosers worm problem. I need a theorem.

    Started by Pereskia, November 16th, 2017 09:32
    cover, mosers, problem, shape, worm
    • Replies: 0
    • Views: 78
    Last Post: November 16th, 2017 09:32
    by Pereskia  Go to last post
    • Replies: 7
    • Views: 227
    Last Post: November 15th, 2017 18:27
    by Alan  Go to last post

    Forum:
    Analysis

  12. Problem Of The Week #286 Nov 5th, 2017

    Started by anemone, November 5th, 2017 01:34
    leftdfrac8pi7right$, potw, problem, remember, submission
    • Replies: 1
    • Views: 140
    Last Post: November 13th, 2017 11:31
    by anemone  Go to last post
  13. Problem Of The Week # 287 - Oct 31, 2017

    Started by Ackbach, October 31st, 2017 19:47
    $k$, fracakk, potw, problem, read
    • Replies: 1
    • Views: 140
    Last Post: November 9th, 2017 10:30
    by Ackbach  Go to last post
  14. Problem 13 from section 16.1 of Taylor's PDE textbook.

    Started by Alan, November 3rd, 2017 13:40
    • Replies: 1
    • Views: 107
    Last Post: November 3rd, 2017 14:19
    by Alan  Go to last post
  15. Problem Of The Week # 285 - Oct 19, 2017

    Started by Ackbach, October 19th, 2017 12:35
    evaluate, integer, potw, problem, [sum_n=1^infty
    • Replies: 1
    • Views: 177
    Last Post: October 24th, 2017 14:01
    by Ackbach  Go to last post
  16. Function problem

    Started by Riwaj, October 22nd, 2017 03:02
    function, implies, problem, show, x+1
    • Replies: 2
    • Views: 132
    Last Post: October 22nd, 2017 08:28
    by HallsofIvy  Go to last post
  17. Calculus 3 (Series) UNSOLVED PROBLEM

    Started by matdac, October 19th, 2017 19:11
    • Replies: 2
    • Views: 134
    Last Post: October 21st, 2017 06:06
    by Prove It  Go to last post

    Forum:
    Calculus

  18. Problem Of The Week #283 Oct 13th, 2017

    Started by anemone, October 13th, 2017 12:14
    $a_2=dfrac12$, $kge, 1.$, problem, prove
    • Replies: 1
    • Views: 191
    Last Post: October 20th, 2017 11:01
    by MarkFL  Go to last post
  19. Complex number geometrical problem

    Started by amr21, October 19th, 2017 05:18
    complex, geometrical, number, problem, show
    • Replies: 4
    • Views: 173
    Last Post: October 20th, 2017 04:07
    by castor28  Go to last post

    Forum:
    Analysis

  20. fractions with brackets

    Started by unknown, October 19th, 2017 17:07
    19/20-1/2-3/10, brackets, fractions, problem, work
    • Replies: 1
    • Views: 125
    Last Post: October 19th, 2017 17:40
    by topsquark  Go to last post
  21. Problem of the Week #257 - Sep 26, 2017

    Started by Euge, September 26th, 2017 23:51
    guidelines, potw, problem, read, remember
    • Replies: 1
    • Views: 238
    Last Post: October 17th, 2017 09:27
    by Euge  Go to last post
  22. Arithmetic Sequence Confusion // a{n-1} and a{n+1}

    Started by Machara, October 14th, 2017 06:00
    a0=2, algebra explanation, an+1, problem, sequence
    • Replies: 1
    • Views: 132
    Last Post: October 14th, 2017 08:26
    by HallsofIvy  Go to last post
  23. Problem Of The Week #282 Oct 6th, 2017

    Started by anemone, October 6th, 2017 21:25
    angles, potw, problem, weeks
    • Replies: 1
    • Views: 184
    Last Post: October 13th, 2017 12:05
    by anemone  Go to last post
  24. Major issue to handle this proof

    Started by nicekiller231, October 12th, 2017 00:30
    occurs, parameter, problem, time, variation
    • Replies: 2
    • Views: 190
    Last Post: October 12th, 2017 23:42
    by nicekiller231  Go to last post
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