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Tag: prove

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  1. axiomatics

    Started by solakis, September 11th, 2017 19:35
    a+b=0vee, aa=bblongrightarrow, axiomatics, forall, prove
    • Replies: 2
    • Views: 149
    Last Post: November 16th, 2017 09:49
    by solakis  Go to last post
  2. Unsolved Challenge
    Prove √(sinx)>sin√(x)

    Started by anemone, October 15th, 2017 00:20
    $sqrtsin, √sinxsin√x, prove, sqrtx$, xsin
    • Replies: 2
    • Views: 184
    Last Post: November 13th, 2017 11:53
    by anemone  Go to last post
  3. [SOLVED] Probability measure: prove or disprove

    Started by mathmari, November 5th, 2017 12:20
    disprove, measure, overlineb$, probability, prove
    • Replies: 4
    • Views: 97
    Last Post: November 10th, 2017 16:13
    by mathmari  Go to last post
  4. Inequality of Four Variables

    Started by anemone, July 29th, 2016 00:14
    $aba^2+, bcb^2+, b^2, c^2, prove
    • Replies: 1
    • Views: 264
    Last Post: November 6th, 2017 17:25
    by MarkFL  Go to last post
  5. triangular relations

    Started by solakis, October 17th, 2017 18:33
    ad^2+de^2+ae^2=, bd=de=ec, points, prove, triangular
    • Replies: 1
    • Views: 91
    Last Post: November 6th, 2017 16:07
    by Opalg  Go to last post
  6. Unsolved Challenge
    Prove a quartic equation has at least one real solution

    Started by anemone, November 3rd, 2017 21:52
    equation, greater, prove, real, solution
    • Replies: 2
    • Views: 119
    Last Post: November 5th, 2017 01:42
    by anemone  Go to last post
  7. Unsolved Challenge
    Trigonometric Sum

    Started by greg1313, October 31st, 2017 00:20
    $n=3, prove, show, sum, trigonometric
    • Replies: 2
    • Views: 130
    Last Post: November 3rd, 2017 22:09
    by greg1313  Go to last post
  8. Unsolved Challenge
    Trigonometric equality

    Started by anemone, October 26th, 2017 12:39
    $sin, equality, prove, sin, trigonometric
    • Replies: 1
    • Views: 160
    Last Post: October 29th, 2017 08:47
    by Opalg  Go to last post
  9. 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: 151
    Last Post: October 20th, 2017 11:01
    by MarkFL  Go to last post
  10. Unsolved Challenge
    Prove (a-b)ᵃ⁻ᵇaᵃᵇ⁻ᵃ ≥ (a-1)ᵃᵇ⁻ᵇ

    Started by anemone, October 19th, 2017 11:38
    $a$, $b$, a-bᵃaᵃ, positive, prove
    • Replies: 0
    • Views: 86
    Last Post: October 19th, 2017 11:38
    by anemone  Go to last post
  11. sequences

    Started by solakis, October 1st, 2017 10:58
    1^n, diverges, prove, sequence, sequences
    • Replies: 8
    • Views: 284
    Last Post: October 17th, 2017 20:17
    by solakis  Go to last post
  12. [SOLVED] How to prove this inequality?

    Started by Cbarker1, October 15th, 2017 19:56
    $$n^2-n0$$, inequality, negative, prove, theorem
    • Replies: 2
    • Views: 129
    Last Post: October 17th, 2017 20:14
    by Cbarker1  Go to last post
  13. Unsolved Challenge
    Prove ∠A≤60.

    Started by anemone, October 13th, 2017 12:28
    attempt, challenge, interesting, prove, unsolved
    • Replies: 2
    • Views: 176
    Last Post: October 14th, 2017 12:24
    by anemone  Go to last post
  14. Prove this theorem

    Started by Cbarker1, October 12th, 2017 18:40
    assume, integer, lost, prove, square
    • Replies: 1
    • Views: 111
    Last Post: October 13th, 2017 11:40
    by I like Serena  Go to last post
  15. Level surface

    Started by Elize88, October 8th, 2017 09:53
    level, lineair, planes, prove, surface
    • Replies: 1
    • Views: 142
    Last Post: October 8th, 2017 11:58
    by Opalg  Go to last post
  16. [SOLVED] Using Residue Theorem To Prove Value Of Summation

    Started by joypav, October 7th, 2017 10:55
    • Replies: 4
    • Views: 178
    Last Post: October 7th, 2017 12:10
    by MarkFL  Go to last post

    Forum:
    Analysis

  17. Problem of the Week # 252 - Feb 07, 2017

    Started by Ackbach, February 7th, 2017 15:24
    $g$, $thetan, normal, potw, prove
    • Replies: 1
    • Views: 280
    Last Post: October 5th, 2017 13:23
    by Ackbach  Go to last post
  18. proving a formula

    Started by solakis, September 28th, 2017 17:41
    axists, prove, proving, wedge, xin
    • Replies: 3
    • Views: 126
    Last Post: September 30th, 2017 11:15
    by Evgeny.Makarov  Go to last post
  19. Prove the identity

    Started by Silver Bolt, September 22nd, 2017 01:13
    identity, prove
    • Replies: 3
    • Views: 186
    Last Post: September 22nd, 2017 01:39
    by MarkFL  Go to last post

    Forum:
    Trigonometry

  20. Polynomial in n variables: Prove the identity

    Started by lfdahl, September 10th, 2017 17:09
    $1$, $f$, identity, polynomial, prove
    • Replies: 1
    • Views: 140
    Last Post: September 15th, 2017 14:54
    by lfdahl  Go to last post
  21. Prove the identity

    Started by Silver Bolt, September 12th, 2017 22:33
    ideas, identity, prove
    • Replies: 1
    • Views: 144
    Last Post: September 13th, 2017 00:27
    by kaliprasad  Go to last post

    Forum:
    Trigonometry

  22. Prove the existence of an equilateral triangle

    Started by lfdahl, September 7th, 2017 17:12
    $c$, equilateral, point, prove, triangle
    • Replies: 1
    • Views: 130
    Last Post: September 12th, 2017 15:03
    by lfdahl  Go to last post
  23. Prove the identity

    Started by Silver Bolt, September 6th, 2017 07:32
    identity, prove
    • Replies: 2
    • Views: 160
    Last Post: September 12th, 2017 11:18
    by greg1313  Go to last post

    Forum:
    Trigonometry

  24. Prove the identity

    Started by Silver Bolt, September 12th, 2017 01:12
    identity, prove
    • Replies: 2
    • Views: 141
    Last Post: September 12th, 2017 11:05
    by greg1313  Go to last post

    Forum:
    Trigonometry

  25. Problem of the week #275 Aug 12th, 2017

    Started by anemone, August 12th, 2017 12:09
    frac32le, potw, problem, prove, suppose
    • Replies: 1
    • Views: 173
    Last Post: August 21st, 2017 12:22
    by anemone  Go to last post
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