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Easy proof don't know where i am going wrong

  1. Jan 19, 2005 #1
    the question is show that (1+i)^(95) =(1-i)*2^(47)
    we are told that z^(n) = r^(n) * e^(i*n*theta)

    when i do the problem i get

    (1+i)^(95) =(1+i)*2^(47)

    can anybody verify whether i am right or wrong. thanks :biggrin:
  2. jcsd
  3. Jan 19, 2005 #2
    show me your r and theta b4 i can further help you... the question has no problem and I get (1-i)*2^47
  4. Jan 19, 2005 #3
    stupid me... i know what it is now... my problem was that i had sin(95pi/4) = 1/sqrt2 and not the negative of that... thanks checking the problem

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