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  2. Factorize a^3 + b^3 + c^3 - 3abc

    Factorize a^3 + b^3 + c^3 - 3abc

    19
    2
    1
  4. Prove interesting trigonometric identities

    Prove interesting trigonometric identities

    40
    3
    1
  5. Integral of sec(x) and Integral of 1/sec(x)

    Integral of sec(x) and Integral of 1/sec(x)

    24
    2
    14
  6. sin 15 and sin 18 and cos 36: Pure geometric way

    sin 15 and sin 18 and cos 36: Pure geometric way

    34
    5
    4
  7. Prove Fermat last theorem n=4

    Prove Fermat last theorem n=4

    22
    2
    11
  10. 黎曼猜想 What is Riemann hypothesis (14): Higher L function

    黎曼猜想 What is Riemann hypothesis (14): Higher L function

    27
    4
    14
  11. GoldSeek Radio Nugget -- Louis Navellier: The World Is Nearing Mass Starvation

    GoldSeek Radio Nugget -- Louis Navellier: The World Is Nearing Mass Starvation

    3
    0
    893
  12. integral of t^{z-1}/(e^z-1) from 0 to infinity

    integral of t^{z-1}/(e^z-1) from 0 to infinity

    31
    4
    5
  13. Joukowski Transformation in complex analysis

    Joukowski Transformation in complex analysis

    34
    4
    1
  14. Integral of e^ax cos(bx) and Integral of e^ax sin(bx) no integration by part

    Integral of e^ax cos(bx) and Integral of e^ax sin(bx) no integration by part

    22
    3
    434
  15. Integral of 1/sqrt{x^2+1}, Integral of 1/sqrt{x^2-1}, Integral of 1/sqrt{1-x^2}

    Integral of 1/sqrt{x^2+1}, Integral of 1/sqrt{x^2-1}, Integral of 1/sqrt{1-x^2}

    24
    2
    32
  16. index 2 subgroup must be a normal subgroup

    index 2 subgroup must be a normal subgroup

    33
    4
    5
  17. Cardano’s formula: Cubic equation

    Cardano’s formula: Cubic equation

    18
    3
    3
  18. In triangle, tanA+tanB+tanC=tanA*tanB*tanC

    In triangle, tanA+tanB+tanC=tanA*tanB*tanC

    43
    6
    8
  19. Find eigenvalues of matrix with all same element

    Find eigenvalues of matrix with all same element

    22
    2
    7
  21. Nested radical1: Nested radical of Ramanujan

    Nested radical1: Nested radical of Ramanujan

    30
    4
    2
  22. Nested radical 2: Nested radical of Ramanujan

    Nested radical 2: Nested radical of Ramanujan

    26
    8
    1
  25. Complex analysis Integral of cos(ax)/coshx from 0 to infinity

    Complex analysis Integral of cos(ax)/coshx from 0 to infinity

    27
    8
    8
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