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Math Help - modulus and argument

  1. #1
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    modulus and argument

    Find the modulus and argument of the complex numbers z_1 , z_2 ,z_3 if z_1=1-i ,
    z_2=z_1^3 and z_3=\frac{\sqrt3-i}{\sqrt3+i}

    I just couldn't understand this part : z_2=z_1^3 .. what does it mean ?
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  2. #2
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    Quote Originally Posted by mathaddict View Post
    Find the modulus and argument of the complex numbers z_1 , z_2 ,z_3 if z_1=1-i ,
    z_2=z_1^3 and z_3=\frac{\sqrt3-i}{\sqrt3+i}

    I just couldn't understand this part : z_2=z_1^3 .. what does it mean ?
    z_1^3 = (1 - i)^3 therefore z_2 = (1 - i)^3.
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  3. #3
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    Re :

    Oh , just a simple one , i thought it means something else . THanks , Mr f
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