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Posted by on Tuesday, January 24, 2012 at 12:44pm.

Hi i need help for calcul with a Moivre's theorem:
( 1/2 ( -1 - i√3 )) ^3
thanks for your help

  • calculus - , Tuesday, January 24, 2012 at 1:19pm

    convert (x,y) to (r,θ)
    1/2 ( -1 - i√3 ) = (1,4π/3)

    (re)n = rneinθ

    (1,4π/3)3 = (13,4π) = (1,4π)
    in (x,y) that's (1,0)

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