Recent content by mahmudarif

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    Graduate Proving/Disproving: Coprimes & (an + bn + cn ) / abc

    if a, b, c (integers) are coprimes then (an + bn + cn ) / abc can't be a number that is not a fraction (integer). Any idea to prove/disprove it will be highly appreciated.
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    Graduate Can anyone me to generalize and prove this if it is valid?

    Got the point. Thanks every one...
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    Graduate So is chike obo proof of fermat's last theorem

    A review of this proof published in Mathematical Reviews claims that Obi's proof is a previously-known false proof.[wiki] Fermat’s Last Theorem had already been solved in 1994 by Andrew Wiles and Richard Taylor. The review below, of Chike Obi's 10 page solution to Fermat's Last Theorem, was...
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    Graduate Can anyone me to generalize and prove this if it is valid?

    X^4-(X^3)y+(X^2)(y^2)-x(y^3)+y^4= (x+y)^4-5xy(x+y)^2+5(xy)^2 x^6-(x^5)y+(X^4)(y^2)-(X^3)(y^3)+(X^2)(y^4)-x(y^5)+y^6=(x+y)^6-7xy(x+y)^4 +14((xy)^2)(x+y)^2 - 7(xy)^3 ...... If n is an odd prime then prove, x^n-1 - X^(n-2).y+...-x.y^(n-2)+y^(n-1) = (x+y)^n-1 - nxy(x+y)^(n-3)...