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how to extract coefficients of non-cosine term?

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  • Subject: [mg108047] how to extract coefficients of non-cosine term?
  • From: Ruida <coolradar at gmail.com>
  • Date: Sun, 7 Mar 2010 04:04:13 -0500 (EST)

Hi guys,

I expanded an expression which end up with a lot cosine term, such as
Cos[w t],Cos[2w t], Cos[3w t]....

My question is how to extract coefficient for non-cosine terms?
 I did my research with Google but couldn't find a solution.

Thanks a lot!


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