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!

Fourier Series of: 2sin(4000*pi*t)*sin(46000*pi*t)

  1. Oct 1, 2012 #1
    1. The problem statement, all variables and given/known data

    How can i find the magnitude spectra of 2sin(4000*pi*t)*sin(46000*pi*t)



    3. The attempt at a solution

    im not sure how to go about this question, can someone please give me some help on what i should do. I know that for a square wave i can find the fourier series coefficients of it by finding the fourier transform of one period (which is the fourier transform of standard rect function) and then use Gn = f0G1(nf0). But this question im not sure if i can do this shortcut method.
    please help, thanks.
     
  2. jcsd
  3. Oct 1, 2012 #2
    someone please give me some hints
     
  4. Oct 2, 2012 #3

    rude man

    User Avatar
    Homework Helper
    Gold Member

    Given angles x and y, what is the trigonometric identity relating the sines of these angles to the sum and difference of these angles?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Fourier Series of: 2sin(4000*pi*t)*sin(46000*pi*t)
Loading...