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Eiθ = cos θ + i sen θ

  1. Mar 16, 2013 #1
    Can anyone prove me this stament please.
     
  2. jcsd
  3. Mar 16, 2013 #2
    the proof to Euler's formula

    e=cosθ+isinθ

    is using taylor series for the exponential function

    For any complex number z, we define ez by

    ez=[itex]\sum[/itex][itex]\frac{z^n}{n!}[/itex].
     
  4. Mar 16, 2013 #3
    thanks a lot I think you were a great help
     
  5. Mar 16, 2013 #4

    micromass

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    Please read this: https://www.physicsforums.com/blog.php?b=3588 [Broken]
     
    Last edited by a moderator: May 6, 2017
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