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  1. Prove Method of infinite Descent (Vieta's jumping) : (4a^2-1)^2/(4ab-1) is integer, then a=b

    Prove Method of infinite Descent (Vieta's jumping) : (4a^2-1)^2/(4ab-1) is integer, then a=b

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  2. Integral of 1/(1+x^2)^2 (substitution)

    Integral of 1/(1+x^2)^2 (substitution)

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  3. Integral of 1/(x^3-1) from integral of 1/(x^3+1)

    Integral of 1/(x^3-1) from integral of 1/(x^3+1)

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  4. Volume of sphere, Cone, Pyramid

    Volume of sphere, Cone, Pyramid

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  5. Plot Mcdonald Shape by function

    Plot Mcdonald Shape by function

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  6. Prove Method of infinite Descent : no nontrivial solutions x^2+y^2=3z^2

    Prove Method of infinite Descent : no nontrivial solutions x^2+y^2=3z^2

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  7. Fourier transformation of boolean function: Linear programming bounds and Kravchuk polynomials

    Fourier transformation of boolean function: Linear programming bounds and Kravchuk polynomials

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  8. integral of x^n lnx from 0 to 1

    integral of x^n lnx from 0 to 1

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  9. Prove Method of infinite Descent (Vieta's jumping) : (x^2+y^2+1)/xy=3

    Prove Method of infinite Descent (Vieta's jumping) : (x^2+y^2+1)/xy=3

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  10. Very funny math question solve x for x^x^n=n

    Very funny math question solve x for x^x^n=n

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  11. Prove Method of infinite Descent (Vieta's jumping) : (a^2+b^2)/(ab+1) is square, imo1988

    Prove Method of infinite Descent (Vieta's jumping) : (a^2+b^2)/(ab+1) is square, imo1988

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  12. Prove Method of infinite Descent : square 2 is irrational

    Prove Method of infinite Descent : square 2 is irrational

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  13. Linear algebra advanced basic: Zorn's lemma, exchange lemma, dimension

    Linear algebra advanced basic: Zorn's lemma, exchange lemma, dimension

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  14. Field theory (Abstract Algebra)

    Field theory (Abstract Algebra)

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  15. a_{n+2}=5a_{n+1}-6a_{n} Mathematical induction

    a_{n+2}=5a_{n+1}-6a_{n} Mathematical induction

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  16. Linear map fixed point theorem

    Linear map fixed point theorem

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  18. More easy mathematical induction exercise

    More easy mathematical induction exercise

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  19. Mathematical induction middle level exercise

    Mathematical induction middle level exercise

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  20. Schrodinger equation and Klein Gordan equation continuity equation

    Schrodinger equation and Klein Gordan equation continuity equation

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  22. Gaussian integer and Fermat theorem

    Gaussian integer and Fermat theorem

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  23. Integral of 1/(x^2+1) by using complex number

    Integral of 1/(x^2+1) by using complex number

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  24. Special quartic equation and cos72

    Special quartic equation and cos72

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  25. Normal subgroup and quotient subgroup

    Normal subgroup and quotient subgroup

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