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Really hard integral

  1. Oct 31, 2004 #1
    Integral of exp(x)*sqrt( 5 - cos(x))
  2. jcsd
  3. Nov 1, 2004 #2


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    Is that a cosine or a hyperbolic cosine?
  4. Nov 1, 2004 #3
    Maybe you should try:

    [tex] 5-cosx = x^2 [/tex]

    then take "log" on both sides and proceed from there. :tongue:
  5. Nov 1, 2004 #4
    Try integrating by parts.
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