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#1 Re: Jai Ganesh's Puzzles » Indices and Surds » 2007-03-21 03:53:47

solution : -
       3 ^ x = k
       k ^(1/x ) = 3
       k ^(1/y) =4
       k ^ (1/z) =12
          12 =3 *4 .
        k ^ (1/z) =  k ^(1/x ) *
       k ^(1/y)
        1/x + 1/y =1/z

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