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How do you integrate the following questions?

  1. Oct 22, 2006 #1
    How do you integrate the following questions?

    1) x/((3-x^4)^(1/2))*dx

    2) (1+e^x)/(1-e^x)*dx

    3) (xlnx)/((x^2-1)^(1/2))*dx

    thank you so much!!!
  2. jcsd
  3. Oct 23, 2006 #2
    1. Set [tex] x^{2} = \sqrt{3}\sin \theta [/tex]

    2. Divide it and get [tex] \int 1 + \frac{2e^{x}}{1-e^{x}} dx [/tex]

    3. Use integration by parts.
    Last edited: Oct 23, 2006
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