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Homework Help: Integration Help

  1. Sep 20, 2005 #1
    Okay, I just failed my Calc quiz and I want to know how to do the problems I missed. I failed to integrate two of the three equations that were given. The two I missed were:

    [tex]\int\sqrt{1 + e^x}dx[/tex]

    [tex]\int\frac{\arctan{\sqrt{t}}}{\sqrt{t}}dt[/tex]

    Nothing like this is in our book, I don't know where she gets these problems from. She said we're suppose to use some type of u-substitution but I can't figure out which. Can someone walk me through this?
     
  2. jcsd
  3. Sep 20, 2005 #2

    TD

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    Homework Helper

    Try the following substitutions:

    [tex]t = \sqrt{1+e^x}[/tex]

    [tex]u = \sqrt{t}[/tex]
     
  4. Sep 20, 2005 #3
    You may need to use integration by parts as well.
     
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