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Homework Help: Taylor series of 1/sqrt(cosx)

  1. Oct 8, 2005 #1
    Is there a way to get the Taylor series of 1/sqrt(cosx), without using the direct f(x)=f(0)+xf'(0)+(x^2/2!)f''(0)+(x^3/3!)f'''(0)... form, just by manipulating it if you already know the series for cosx?
  2. jcsd
  3. Oct 8, 2005 #2
    nvm.. I got it (yay) :smile:
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