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Homework Help: Complex Numbers

  1. Nov 14, 2005 #1
    Hi there have i got this right if someone could check please? [tex]z=x+\imath{}y[/tex] Find the real and imaginary parts [tex]z+(1/z)[/tex] sub [tex]x+\imath{}y + \frac{1}{x+\imath{}y}[/tex] if we multiply by [tex]x+\imath{}y[/tex] and i get as the real part as [tex]x^2-y^2+1[/tex]. Have i got this right? Thanks in advance
     
    Last edited: Nov 14, 2005
  2. jcsd
  3. Nov 14, 2005 #2
    No. First step.. I'd deal with the fractional part. Multiply the numerator and denominator by the complex conjugate of the denominator, and simplify. That's how you divide by a complex number anyway..
     
  4. Nov 14, 2005 #3
    cheers mate
     
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