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[Post New]8 Nov 2006 00:11:38 IST
    Subject: maths
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manish parwani (0)

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cube root of unity
    
[Post New]8 Nov 2006 02:27:12 IST
    Subject: Re:maths
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puneet (3531)

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hiiiiii
let us suppose x is cube root of unity.
 
               So x = 11/3  or x3 = 1.
 
               Now x3 = 1
                 x3-1 = 0
                 (x-1)(x2 + x + 1) = 0 
 
                   Solving we get x = 1 , (-1 + i3 )/2 , (-1 - i3 )/2
 
I hope it helps.
 
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Puneet Agrawal
IIT Delhi
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