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Count the following integral

  1. Oct 8, 2008 #1
    I'm finding the arch length of a curve:
    [tex] $\int_0^b \sqrt{1+sh^2(x/a)} dx$ [/tex]
    How do i integrate this function?
     
    Last edited: Oct 8, 2008
  2. jcsd
  3. Oct 8, 2008 #2

    CompuChip

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    What do you mean by "count"?
    What is "sh"?
    If it is the hyperbolic sine: cosh^2 - sinh^2 = 1.
     
  4. Oct 8, 2008 #3
    I think he meant "evaluate".
     
  5. Oct 8, 2008 #4
    The derivative of sinh is cosh and the derivative of cosh is sinh
     
  6. Oct 8, 2008 #5
    It's a pity I can't edit the topic.
     
  7. Oct 8, 2008 #6

    CompuChip

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    Exactly. Does this mean you have solved the problem?
     
  8. Oct 8, 2008 #7
    Next step was to use the equation CC gave me.
    Thank you, guys.
     
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