1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Expressing a complex number as an Exponent

  1. Sep 18, 2011 #1
    1. The problem statement, all variables and given/known data
    Express as z = Re[Ae^(i([itex]\varpi[/itex] t+ [itex]\alpha[/itex])]
    1. z = cos([itex]\varpi[/itex] t - [itex]\pi[/itex]/3) - cos ([itex]\varpi[/itex]t)

    2. z= 2sin([itex]\varpi[/itex] t) + 3 cos ([itex]\varpi[/itex] t)

    3. sin([itex]\varpi[/itex] t ) - 2 cos ([itex]\varpi[/itex] t - [itex]\pi[/itex]/4) + cos ([itex]\varpi[/itex] t)

    2. Relevant equations
    I used cos A + cos B; A = (a2+b2)(1/2); and tan([itex]\theta[/itex]) = y/x


    3. The attempt at a solution
    I read the other doubt regarding nearly the same questions, and as much as i tried to figure it out, i couldnt understand how to separate the parts and arrive at the same answer as the textbook requires. Could you please show me in a few more steps. thank u
     
  2. jcsd
  3. Sep 20, 2011 #2
  4. Oct 24, 2011 #3
    Thanks a ton.. Sorry for the late reply, i finally was able to figure it out whew!
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Expressing a complex number as an Exponent
  1. Complex numbers (Replies: 17)

  2. Complex number (Replies: 13)

Loading...